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2137541531 = 125913032
BaseRepresentation
bin111111101101000…
…0100101110011011
312111222011100201212
41333122010232123
513334202312111
6552034533335
7103653542336
oct17732045633
95458140655
102137541531
119a764a654
124b7a3724b
13280b03698
14163c5d61d
15c79d098b
hex7f684b9b

2137541531 has 6 divisors (see below), whose sum is σ = 2140882380. Its totient is φ = 2134204548.

The previous prime is 2137541513. The next prime is 2137541533. The reversal of 2137541531 is 1351457312.

It is not a de Polignac number, because 2137541531 - 214 = 2137525147 is a prime.

It is a super-2 number, since 2×21375415312 = 9138167593499647922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137541533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1639826 + ... + 1641128.

It is an arithmetic number, because the mean of its divisors is an integer number (356813730).

Almost surely, 22137541531 is an apocalyptic number.

2137541531 is a deficient number, since it is larger than the sum of its proper divisors (3340849).

2137541531 is an frugal number, since it uses more digits than its factorization.

2137541531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 2562 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 2137541531 is about 46233.5541679417. The cubic root of 2137541531 is about 1288.1650756348.

Adding to 2137541531 its reverse (1351457312), we get a palindrome (3488998843).

The spelling of 2137541531 in words is "two billion, one hundred thirty-seven million, five hundred forty-one thousand, five hundred thirty-one".

Divisors: 1 1259 1303 1640477 1697809 2137541531