312105029 has 2 divisors, whose sum is σ = 312105030. Its totient is φ = 312105028.

The previous prime is 312105019. The next prime is 312105061. The reversal of 312105029 is 920501213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274564900 + 37540129 = 16570^2 + 6127^2 .

It is a cyclic number.

It is not a de Polignac number, because 312105029 - 2²⁸ = 43669573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312104995 and 312105013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312105019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156052514 + 156052515.

It is an arithmetic number, because the mean of its divisors is an integer number (156052515).

Almost surely, 2^312105029 is an apocalyptic number.

It is an amenable number.

312105029 is a deficient number, since it is larger than the sum of its proper divisors (1).

312105029 is an equidigital number, since it uses as much as digits as its factorization.

312105029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 312105029 is about 17666.4945306079. The cubic root of 312105029 is about 678.3183859506.

The spelling of 312105029 in words is "three hundred twelve million, one hundred five thousand, twenty-nine".