1154253656 has 16 divisors (see below), whose sum is σ = 2166953040. Its totient is φ = 576399520.

The previous prime is 1154253593. The next prime is 1154253671. The reversal of 1154253656 is 6563524511.

It is a congruent number.

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, 84140 + ... + 96891.

It is an arithmetic number, because the mean of its divisors is an integer number (135434565).

Almost surely, 2^1154253656 is an apocalyptic number.

It is an amenable number.

1154253656 is a deficient number, since it is larger than the sum of its proper divisors (1012699384).

1154253656 is a wasteful number, since it uses less digits than its factorization.

1154253656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181834 (or 181830 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 1154253656 is about 33974.3087641235. The cubic root of 1154253656 is about 1048.9797060962.

The spelling of 1154253656 in words is "one billion, one hundred fifty-four million, two hundred fifty-three thousand, six hundred fifty-six".