152403891 has 8 divisors (see below), whose sum is σ = 205003920. Its totient is φ = 100703232.

The previous prime is 152403887. The next prime is 152403893. The reversal of 152403891 is 198304251.

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

It is not a de Polignac number, because 152403891 - 2² = 152403887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152403893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224446 + ... + 225123.

It is an arithmetic number, because the mean of its divisors is an integer number (25625490).

Almost surely, 2^152403891 is an apocalyptic number.

152403891 is a deficient number, since it is larger than the sum of its proper divisors (52600029).

152403891 is a wasteful number, since it uses less digits than its factorization.

152403891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449685.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 152403891 is about 12345.1970822664. The cubic root of 152403891 is about 534.1526061618.

The spelling of 152403891 in words is "one hundred fifty-two million, four hundred three thousand, eight hundred ninety-one".