152428991 has 8 divisors (see below), whose sum is σ = 179077584. Its totient is φ = 127912320.

The previous prime is 152428973. The next prime is 152428993. The reversal of 152428991 is 199824251.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152428991 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 (152428993) 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, 532826 + ... + 533111.

It is an arithmetic number, because the mean of its divisors is an integer number (22384698).

Almost surely, 2^152428991 is an apocalyptic number.

152428991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

152428991 is a deficient number, since it is larger than the sum of its proper divisors (26648593).

152428991 is a wasteful number, since it uses less digits than its factorization.

152428991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065961.

The product of its digits is 51840, while the sum is 41.

The square root of 152428991 is about 12346.2136300973. The cubic root of 152428991 is about 534.1819284544.

The spelling of 152428991 in words is "one hundred fifty-two million, four hundred twenty-eight thousand, nine hundred ninety-one".