151421375 has 16 divisors (see below), whose sum is σ = 215971392. Its totient is φ = 103831200.

The previous prime is 151421359. The next prime is 151421377. The reversal of 151421375 is 573124151.

It is not a de Polignac number, because 151421375 - 2⁴ = 151421359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151421377) 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 15 ways as a sum of consecutive naturals, for example, 85652 + ... + 87401.

It is an arithmetic number, because the mean of its divisors is an integer number (13498212).

Almost surely, 2^151421375 is an apocalyptic number.

151421375 is a deficient number, since it is larger than the sum of its proper divisors (64550017).

151421375 is an equidigital number, since it uses as much as digits as its factorization.

151421375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173075 (or 173065 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 151421375 is about 12305.3392882927. The cubic root of 151421375 is about 533.0022739256.

The spelling of 151421375 in words is "one hundred fifty-one million, four hundred twenty-one thousand, three hundred seventy-five".