1152621538 has 8 divisors (see below), whose sum is σ = 1729505232. Its totient is φ = 576119796.

The previous prime is 1152621473. The next prime is 1152621541. The reversal of 1152621538 is 8351262511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1152621538² = 2657072819722970888, which contains 22 as substring.

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, 87820 + ... + 100087.

It is an arithmetic number, because the mean of its divisors is an integer number (216188154).

Almost surely, 2^1152621538 is an apocalyptic number.

1152621538 is a deficient number, since it is larger than the sum of its proper divisors (576883694).

1152621538 is a wasteful number, since it uses less digits than its factorization.

1152621538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190976.

The product of its digits is 14400, while the sum is 34.

The square root of 1152621538 is about 33950.2803817583. The cubic root of 1152621538 is about 1048.4850527655.

The spelling of 1152621538 in words is "one billion, one hundred fifty-two million, six hundred twenty-one thousand, five hundred thirty-eight".