612520427 has 2 divisors, whose sum is σ = 612520428. Its totient is φ = 612520426.

The previous prime is 612520379. The next prime is 612520439. The reversal of 612520427 is 724025216.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612520427 - 2⁸ = 612520171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612520427.

It is not a weakly prime, because it can be changed into another prime (612520487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306260213 + 306260214.

It is an arithmetic number, because the mean of its divisors is an integer number (306260214).

Almost surely, 2^612520427 is an apocalyptic number.

612520427 is a deficient number, since it is larger than the sum of its proper divisors (1).

612520427 is an equidigital number, since it uses as much as digits as its factorization.

612520427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 612520427 is about 24749.1500258090. The cubic root of 612520427 is about 849.2590668987.

The spelling of 612520427 in words is "six hundred twelve million, five hundred twenty thousand, four hundred twenty-seven".