312124357 has 2 divisors, whose sum is σ = 312124358. Its totient is φ = 312124356.

The previous prime is 312124333. The next prime is 312124409. The reversal of 312124357 is 753421213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184117761 + 128006596 = 13569^2 + 11314^2 .

It is a cyclic number.

It is not a de Polignac number, because 312124357 - 2²⁷ = 177906629 is a prime.

It is a super-2 number, since 2×312124357² = 194843228465326898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312122357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156062178 + 156062179.

It is an arithmetic number, because the mean of its divisors is an integer number (156062179).

Almost surely, 2^312124357 is an apocalyptic number.

It is an amenable number.

312124357 is a deficient number, since it is larger than the sum of its proper divisors (1).

312124357 is an equidigital number, since it uses as much as digits as its factorization.

312124357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 312124357 is about 17667.0415463371. The cubic root of 312124357 is about 678.3323879327.

It can be divided in two parts, 312124 and 357, that added together give a square (312481 = 559²).

The spelling of 312124357 in words is "three hundred twelve million, one hundred twenty-four thousand, three hundred fifty-seven".