152312819 has 4 divisors (see below), whose sum is σ = 152374944. Its totient is φ = 152250696.

The previous prime is 152312803. The next prime is 152312887. The reversal of 152312819 is 918213251.

It is a happy number.

152312819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918213251 = 71 ⋅12932581.

It is a cyclic number.

It is not a de Polignac number, because 152312819 - 2⁴ = 152312803 is a prime.

It is a super-2 number, since 2×152312819² = 46398389663453522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152312119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27227 + ... + 32340.

It is an arithmetic number, because the mean of its divisors is an integer number (38093736).

Almost surely, 2^152312819 is an apocalyptic number.

152312819 is a deficient number, since it is larger than the sum of its proper divisors (62125).

152312819 is an equidigital number, since it uses as much as digits as its factorization.

152312819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62124.

The product of its digits is 4320, while the sum is 32.

The square root of 152312819 is about 12341.5079710706. The cubic root of 152312819 is about 534.0461870958.

The spelling of 152312819 in words is "one hundred fifty-two million, three hundred twelve thousand, eight hundred nineteen".