312492101 has 2 divisors, whose sum is σ = 312492102. Its totient is φ = 312492100.

The previous prime is 312492097. The next prime is 312492133. The reversal of 312492101 is 101294213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205348900 + 107143201 = 14330^2 + 10351^2 .

It is a cyclic number.

It is not a de Polignac number, because 312492101 - 2² = 312492097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312492151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156246050 + 156246051.

It is an arithmetic number, because the mean of its divisors is an integer number (156246051).

Almost surely, 2^312492101 is an apocalyptic number.

It is an amenable number.

312492101 is a deficient number, since it is larger than the sum of its proper divisors (1).

312492101 is an equidigital number, since it uses as much as digits as its factorization.

312492101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 312492101 is about 17677.4461107933. The cubic root of 312492101 is about 678.5986864513.

The spelling of 312492101 in words is "three hundred twelve million, four hundred ninety-two thousand, one hundred one".