312641629 has 2 divisors, whose sum is σ = 312641630. Its totient is φ = 312641628.

The previous prime is 312641617. The next prime is 312641639. The reversal of 312641629 is 926146213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273240900 + 39400729 = 16530^2 + 6277^2 .

It is a cyclic number.

It is not a de Polignac number, because 312641629 - 2⁷ = 312641501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312641594 and 312641603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312641639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156320814 + 156320815.

It is an arithmetic number, because the mean of its divisors is an integer number (156320815).

Almost surely, 2^312641629 is an apocalyptic number.

It is an amenable number.

312641629 is a deficient number, since it is larger than the sum of its proper divisors (1).

312641629 is an equidigital number, since it uses as much as digits as its factorization.

312641629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 312641629 is about 17681.6749489408. The cubic root of 312641629 is about 678.7069060659.

The spelling of 312641629 in words is "three hundred twelve million, six hundred forty-one thousand, six hundred twenty-nine".