152999991 has 6 divisors (see below), whose sum is σ = 221000000. Its totient is φ = 101999988.

The previous prime is 152999981. The next prime is 153000031. The reversal of 152999991 is 199999251.

152999991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152999991 - 2⁷ = 152999863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152999971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8499991 + ... + 8500008.

Almost surely, 2^152999991 is an apocalyptic number.

152999991 is a deficient number, since it is larger than the sum of its proper divisors (68000009).

152999991 is a wasteful number, since it uses less digits than its factorization.

152999991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000005 (or 17000002 counting only the distinct ones).

The product of its digits is 590490, while the sum is 54.

The square root of 152999991 is about 12369.3165130495. The cubic root of 152999991 is about 534.8481136367.

The spelling of 152999991 in words is "one hundred fifty-two million, nine hundred ninety-nine thousand, nine hundred ninety-one".