1075715397 has 10 divisors (see below), whose sum is σ = 1606932998. Its totient is φ = 717143544.

The previous prime is 1075715387. The next prime is 1075715411. The reversal of 1075715397 is 7935175701.

1075715397 is a `hidden beast` number, since 107 + 5 + 7 + 1 + 539 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 684031716 + 391683681 = 26154^2 + 19791^2 .

It is not a de Polignac number, because 1075715397 - 2⁸ = 1075715141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075715327) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6640138 + ... + 6640299.

Almost surely, 2^1075715397 is an apocalyptic number.

It is an amenable number.

1075715397 is a deficient number, since it is larger than the sum of its proper divisors (531217601).

1075715397 is an equidigital number, since it uses as much as digits as its factorization.

1075715397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280449 (or 13280440 counting only the distinct ones).

The product of its (nonzero) digits is 231525, while the sum is 45.

The square root of 1075715397 is about 32798.1005090234. The cubic root of 1075715397 is about 1024.6269979696.

The spelling of 1075715397 in words is "one billion, seventy-five million, seven hundred fifteen thousand, three hundred ninety-seven".