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6140161 = 9376553
BaseRepresentation
bin10111011011000100000001
3102112221201101
4113123010001
53032441121
6335334401
7103122226
oct27330401
912487641
106140161
113514215
122081401
13136ca41
14b5b94d
15814491
hex5db101

6140161 has 4 divisors (see below), whose sum is σ = 6147652. Its totient is φ = 6132672.

The previous prime is 6140153. The next prime is 6140171. The reversal of 6140161 is 1610416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1050625 + 5089536 = 1025^2 + 2256^2 .

It is a cyclic number.

It is not a de Polignac number, because 6140161 - 23 = 6140153 is a prime.

It is a Duffinian number.

6140161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6140171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (1536913).

It is a Poulet number, since it divides 26140160-1.

Almost surely, 26140161 is an apocalyptic number.

It is an amenable number.

6140161 is a deficient number, since it is larger than the sum of its proper divisors (7491).

6140161 is an equidigital number, since it uses as much as digits as its factorization.

6140161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 6140161 is about 2477.9348256159. The cubic root of 6140161 is about 183.1161236558.

Adding to 6140161 its reverse (1610416), we get a palindrome (7750577).

The spelling of 6140161 in words is "six million, one hundred forty thousand, one hundred sixty-one".

Divisors: 1 937 6553 6140161