157929489 has 27 divisors (see below), whose sum is σ = 235366729. Its totient is φ = 102044040.

The previous prime is 157929481. The next prime is 157929493. The reversal of 157929489 is 984929751.

The square root of 157929489 is 12567.

It is a perfect power (a square), and thus also a powerful number.

157929489 is a `hidden beast` number, since 1 + 579 + 29 + 48 + 9 = 666.

It is not a de Polignac number, because 157929489 - 2³ = 157929481 is a prime.

It is a super-2 number, since 2×157929489² = 49883446991602242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157929481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2224324 + ... + 2224394.

Almost surely, 2^157929489 is an apocalyptic number.

157929489 is the 12567-th square number.

157929489 is the 6284-th centered octagonal number.

It is an amenable number.

157929489 is a deficient number, since it is larger than the sum of its proper divisors (77437240).

157929489 is an frugal number, since it uses more digits than its factorization.

157929489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 133 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The cubic root of 157929489 is about 540.5315855795.

It can be divided in two parts, 15792 and 9489, that added together give a square (25281 = 159²).

The spelling of 157929489 in words is "one hundred fifty-seven million, nine hundred twenty-nine thousand, four hundred eighty-nine".