616542037 has 2 divisors, whose sum is σ = 616542038. Its totient is φ = 616542036.

The previous prime is 616542023. The next prime is 616542053. The reversal of 616542037 is 730245616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485805681 + 130736356 = 22041^2 + 11434^2 .

It is a cyclic number.

It is not a de Polignac number, because 616542037 - 2¹⁵ = 616509269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616541993 and 616542011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616542007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308271018 + 308271019.

It is an arithmetic number, because the mean of its divisors is an integer number (308271019).

Almost surely, 2^616542037 is an apocalyptic number.

It is an amenable number.

616542037 is a deficient number, since it is larger than the sum of its proper divisors (1).

616542037 is an equidigital number, since it uses as much as digits as its factorization.

616542037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 616542037 is about 24830.2645374551. The cubic root of 616542037 is about 851.1136668841.

The spelling of 616542037 in words is "six hundred sixteen million, five hundred forty-two thousand, thirty-seven".