152942689 has 9 divisors (see below), whose sum is σ = 155853523. Its totient is φ = 150085912.

The previous prime is 152942681. The next prime is 152942707. The reversal of 152942689 is 986249251.

The square root of 152942689 is 12367.

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

It can be written as a sum of positive squares in only one way, i.e., 17918289 + 135024400 = 4233^2 + 11620^2 .

It is not a de Polignac number, because 152942689 - 2³ = 152942681 is a prime.

It is a super-2 number, since 2×152942689² = 46782932237101442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152942681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1026387 + ... + 1026535.

Almost surely, 2^152942689 is an apocalyptic number.

152942689 is the 12367-th square number.

152942689 is the 6184-th centered octagonal number.

It is an amenable number.

152942689 is a deficient number, since it is larger than the sum of its proper divisors (2910834).

152942689 is an frugal number, since it uses more digits than its factorization.

152942689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 232 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The cubic root of 152942689 is about 534.7813343441.

It can be divided in two parts, 152 and 942689, that added together give a square (942841 = 971²).

The spelling of 152942689 in words is "one hundred fifty-two million, nine hundred forty-two thousand, six hundred eighty-nine".