1157272456 has 16 divisors (see below), whose sum is σ = 2184258240. Its totient is φ = 574803600.

The previous prime is 1157272427. The next prime is 1157272469. The reversal of 1157272456 is 6542727511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477796 + ... + 480211.

It is an arithmetic number, because the mean of its divisors is an integer number (136516140).

Almost surely, 2^1157272456 is an apocalyptic number.

It is an amenable number.

1157272456 is a deficient number, since it is larger than the sum of its proper divisors (1026985784).

1157272456 is a wasteful number, since it uses less digits than its factorization.

1157272456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958164 (or 958160 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 1157272456 is about 34018.7074416416. The cubic root of 1157272456 is about 1049.8933999111.

Adding to 1157272456 its reverse (6542727511), we get a palindrome (7699999967).

The spelling of 1157272456 in words is "one billion, one hundred fifty-seven million, two hundred seventy-two thousand, four hundred fifty-six".