1057897451 has 8 divisors (see below), whose sum is σ = 1170065904. Its totient is φ = 950127840.

The previous prime is 1057897417. The next prime is 1057897459. The reversal of 1057897451 is 1547987501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057897451 - 2²⁶ = 990788587 is a prime.

It is a super-2 number, since 2×1057897451² = 2238294033664594802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057897396 and 1057897405.

It is not an unprimeable number, because it can be changed into a prime (1057897459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099205 + ... + 1100166.

It is an arithmetic number, because the mean of its divisors is an integer number (146258238).

Almost surely, 2^1057897451 is an apocalyptic number.

1057897451 is a deficient number, since it is larger than the sum of its proper divisors (112168453).

1057897451 is a wasteful number, since it uses less digits than its factorization.

1057897451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199421.

The product of its (nonzero) digits is 352800, while the sum is 47.

The square root of 1057897451 is about 32525.3355247874. The cubic root of 1057897451 is about 1018.9382296831.

The spelling of 1057897451 in words is "one billion, fifty-seven million, eight hundred ninety-seven thousand, four hundred fifty-one".