312151043 has 2 divisors, whose sum is σ = 312151044. Its totient is φ = 312151042.

The previous prime is 312151001. The next prime is 312151067. The reversal of 312151043 is 340151213.

It is a strong prime.

It is an emirp because it is prime and its reverse (340151213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312151043 - 2²⁸ = 43715587 is a prime.

It is not a weakly prime, because it can be changed into another prime (312151643) 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 as a sum of consecutive naturals, namely, 156075521 + 156075522.

It is an arithmetic number, because the mean of its divisors is an integer number (156075522).

Almost surely, 2^312151043 is an apocalyptic number.

312151043 is a deficient number, since it is larger than the sum of its proper divisors (1).

312151043 is an equidigital number, since it uses as much as digits as its factorization.

312151043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 312151043 is about 17667.7967783196. The cubic root of 312151043 is about 678.3517193967.

The spelling of 312151043 in words is "three hundred twelve million, one hundred fifty-one thousand, forty-three".