1578117052 has 12 divisors (see below), whose sum is σ = 2762508280. Its totient is φ = 788828976.

The previous prime is 1578117049. The next prime is 1578117061. The reversal of 1578117052 is 2507118751.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 41427 + ... + 69802.

Almost surely, 2^1578117052 is an apocalyptic number.

It is an amenable number.

1578117052 is a deficient number, since it is larger than the sum of its proper divisors (1184391228).

1578117052 is a wasteful number, since it uses less digits than its factorization.

1578117052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114780 (or 114778 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 37.

The square root of 1578117052 is about 39725.5214188562. The cubic root of 1578117052 is about 1164.2504224177.

The spelling of 1578117052 in words is "one billion, five hundred seventy-eight million, one hundred seventeen thousand, fifty-two".