1075643457 has 32 divisors (see below), whose sum is σ = 1681612800. Its totient is φ = 598822848.

The previous prime is 1075643411. The next prime is 1075643479. The reversal of 1075643457 is 7543465701.

It is a happy number.

It is not a de Polignac number, because 1075643457 - 2¹⁸ = 1075381313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1075643857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223644 + ... + 228402.

It is an arithmetic number, because the mean of its divisors is an integer number (52550400).

Almost surely, 2^1075643457 is an apocalyptic number.

It is an amenable number.

1075643457 is a deficient number, since it is larger than the sum of its proper divisors (605969343).

1075643457 is a wasteful number, since it uses less digits than its factorization.

1075643457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

The product of its (nonzero) digits is 352800, while the sum is 42.

The square root of 1075643457 is about 32797.0037808334. The cubic root of 1075643457 is about 1024.6041563303.

The spelling of 1075643457 in words is "one billion, seventy-five million, six hundred forty-three thousand, four hundred fifty-seven".