152991329 has 8 divisors (see below), whose sum is σ = 154227240. Its totient is φ = 151760896.

The previous prime is 152991281. The next prime is 152991353. The reversal of 152991329 is 923199251.

152991329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 80281600 + 72709729 = 8960^2 + 8527^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 152991329 - 2⁸ = 152991073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152991029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68027 + ... + 70239.

It is an arithmetic number, because the mean of its divisors is an integer number (19278405).

Almost surely, 2^152991329 is an apocalyptic number.

It is an amenable number.

152991329 is a deficient number, since it is larger than the sum of its proper divisors (1235911).

152991329 is a wasteful number, since it uses less digits than its factorization.

152991329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739.

The product of its digits is 43740, while the sum is 41.

The square root of 152991329 is about 12368.9663674860. The cubic root of 152991329 is about 534.8380200810.

The spelling of 152991329 in words is "one hundred fifty-two million, nine hundred ninety-one thousand, three hundred twenty-nine".