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1340527631 is a prime number
BaseRepresentation
bin100111111100110…
…1101010000001111
310110102102212012112
41033321231100033
510221133341011
6341004054235
745135203552
oct11771552017
93412385175
101340527631
11628769283
12314b3437b
13184957a21
14ca070699
157ca4858b
hex4fe6d40f

1340527631 has 2 divisors, whose sum is σ = 1340527632. Its totient is φ = 1340527630.

The previous prime is 1340527621. The next prime is 1340527679. The reversal of 1340527631 is 1367250431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1340527631 is a prime.

It is a super-2 number, since 2×13405276312 = 3594028658948944322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340527621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670263815 + 670263816.

It is an arithmetic number, because the mean of its divisors is an integer number (670263816).

Almost surely, 21340527631 is an apocalyptic number.

1340527631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340527631 is an equidigital number, since it uses as much as digits as its factorization.

1340527631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1340527631 is about 36613.2166164078. The cubic root of 1340527631 is about 1102.6184537896.

The spelling of 1340527631 in words is "one billion, three hundred forty million, five hundred twenty-seven thousand, six hundred thirty-one".