152312917 has 4 divisors (see below), whose sum is σ = 152341696. Its totient is φ = 152284140.

The previous prime is 152312893. The next prime is 152312939. The reversal of 152312917 is 719213251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 719213251 = 19 ⋅37853329.

It is a cyclic number.

It is not a de Polignac number, because 152312917 - 2¹⁹ = 151788629 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 (152312957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903 + ... + 17884.

It is an arithmetic number, because the mean of its divisors is an integer number (38085424).

Almost surely, 2^152312917 is an apocalyptic number.

It is an amenable number.

152312917 is a deficient number, since it is larger than the sum of its proper divisors (28779).

152312917 is an equidigital number, since it uses as much as digits as its factorization.

152312917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28778.

The product of its digits is 3780, while the sum is 31.

The square root of 152312917 is about 12341.5119414114. The cubic root of 152312917 is about 534.0463016331.

The spelling of 152312917 in words is "one hundred fifty-two million, three hundred twelve thousand, nine hundred seventeen".