1152434857 has 16 divisors (see below), whose sum is σ = 1379750400. Its totient is φ = 941653440.

The previous prime is 1152434839. The next prime is 1152434861. The reversal of 1152434857 is 7584342511.

It is a de Polignac number, because none of the positive numbers 2^k-1152434857 is a prime.

It is a super-2 number, since 2×1152434857² = 2656212199257220898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1152434897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19894 + ... + 51967.

It is an arithmetic number, because the mean of its divisors is an integer number (86234400).

Almost surely, 2^1152434857 is an apocalyptic number.

It is an amenable number.

1152434857 is a deficient number, since it is larger than the sum of its proper divisors (227315543).

1152434857 is an equidigital number, since it uses as much as digits as its factorization.

1152434857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71976.

The product of its digits is 134400, while the sum is 40.

The square root of 1152434857 is about 33947.5309411450. The cubic root of 1152434857 is about 1048.4284447637.

The spelling of 1152434857 in words is "one billion, one hundred fifty-two million, four hundred thirty-four thousand, eight hundred fifty-seven".