612315049 has 2 divisors, whose sum is σ = 612315050. Its totient is φ = 612315048.

The previous prime is 612315031. The next prime is 612315079. The reversal of 612315049 is 940513216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565488400 + 46826649 = 23780^2 + 6843^2 .

It is a cyclic number.

It is not a de Polignac number, because 612315049 - 2¹³ = 612306857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612315049.

It is not a weakly prime, because it can be changed into another prime (612315029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306157524 + 306157525.

It is an arithmetic number, because the mean of its divisors is an integer number (306157525).

Almost surely, 2^612315049 is an apocalyptic number.

It is an amenable number.

612315049 is a deficient number, since it is larger than the sum of its proper divisors (1).

612315049 is an equidigital number, since it uses as much as digits as its factorization.

612315049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 612315049 is about 24745.0004849464. Note that the first 3 decimals coincide. The cubic root of 612315049 is about 849.1641374788.

The spelling of 612315049 in words is "six hundred twelve million, three hundred fifteen thousand, forty-nine".