1155874494 has 32 divisors (see below), whose sum is σ = 2388934656. Its totient is φ = 372454560.

The previous prime is 1155874483. The next prime is 1155874513. The reversal of 1155874494 is 4944785511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199324 + ... + 205040.

It is an arithmetic number, because the mean of its divisors is an integer number (74654208).

Almost surely, 2^1155874494 is an apocalyptic number.

1155874494 is an abundant number, since it is smaller than the sum of its proper divisors (1233060162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155874494 is a wasteful number, since it uses less digits than its factorization.

1155874494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840.

The product of its digits is 806400, while the sum is 48.

The square root of 1155874494 is about 33998.1542734308. The cubic root of 1155874494 is about 1049.4704794902.

The spelling of 1155874494 in words is "one billion, one hundred fifty-five million, eight hundred seventy-four thousand, four hundred ninety-four".