612402529 has 2 divisors, whose sum is σ = 612402530. Its totient is φ = 612402528.

The previous prime is 612402499. The next prime is 612402533. The reversal of 612402529 is 925204216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394101904 + 218300625 = 19852^2 + 14775^2 .

It is a cyclic number.

It is not a de Polignac number, because 612402529 - 2¹³ = 612394337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612402529.

It is not a weakly prime, because it can be changed into another prime (612402559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306201264 + 306201265.

It is an arithmetic number, because the mean of its divisors is an integer number (306201265).

Almost surely, 2^612402529 is an apocalyptic number.

It is an amenable number.

612402529 is a deficient number, since it is larger than the sum of its proper divisors (1).

612402529 is an equidigital number, since it uses as much as digits as its factorization.

612402529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 612402529 is about 24746.7680516063. The cubic root of 612402529 is about 849.2045749091.

The spelling of 612402529 in words is "six hundred twelve million, four hundred two thousand, five hundred twenty-nine".