1153398774 has 16 divisors (see below), whose sum is σ = 2516506560. Its totient is φ = 349514760.

The previous prime is 1153398751. The next prime is 1153398791. The reversal of 1153398774 is 4778933511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8737804 + ... + 8737935.

It is an arithmetic number, because the mean of its divisors is an integer number (157281660).

Almost surely, 2^1153398774 is an apocalyptic number.

1153398774 is an abundant number, since it is smaller than the sum of its proper divisors (1363107786).

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

1153398774 is a wasteful number, since it uses less digits than its factorization.

1153398774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17475755.

The product of its digits is 635040, while the sum is 48.

The square root of 1153398774 is about 33961.7251328610. The cubic root of 1153398774 is about 1048.7206713670.

The spelling of 1153398774 in words is "one billion, one hundred fifty-three million, three hundred ninety-eight thousand, seven hundred seventy-four".