312148879 has 4 divisors (see below), whose sum is σ = 356741584. Its totient is φ = 267556176.

The previous prime is 312148877. The next prime is 312148937. The reversal of 312148879 is 978841213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312148879 - 2¹ = 312148877 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 (312148877) 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, 22296342 + ... + 22296355.

It is an arithmetic number, because the mean of its divisors is an integer number (89185396).

Almost surely, 2^312148879 is an apocalyptic number.

312148879 is a deficient number, since it is larger than the sum of its proper divisors (44592705).

312148879 is an equidigital number, since it uses as much as digits as its factorization.

312148879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44592704.

The product of its digits is 96768, while the sum is 43.

The square root of 312148879 is about 17667.7355368480. The cubic root of 312148879 is about 678.3501518259.

The spelling of 312148879 in words is "three hundred twelve million, one hundred forty-eight thousand, eight hundred seventy-nine".