1075042657 has 4 divisors (see below), whose sum is σ = 1157738260. Its totient is φ = 992347056.

The previous prime is 1075042649. The next prime is 1075042669. The reversal of 1075042657 is 7562405701.

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 222636241 + 852406416 = 14921^2 + 29196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075042657 - 2³ = 1075042649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1075042607) 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, 41347782 + ... + 41347807.

It is an arithmetic number, because the mean of its divisors is an integer number (289434565).

Almost surely, 2^1075042657 is an apocalyptic number.

It is an amenable number.

1075042657 is a deficient number, since it is larger than the sum of its proper divisors (82695603).

1075042657 is an equidigital number, since it uses as much as digits as its factorization.

1075042657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82695602.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 1075042657 is about 32787.8431282084. The cubic root of 1075042657 is about 1024.4133567923.

The spelling of 1075042657 in words is "one billion, seventy-five million, forty-two thousand, six hundred fifty-seven".