616261199 has 2 divisors, whose sum is σ = 616261200. Its totient is φ = 616261198.

The previous prime is 616261147. The next prime is 616261231. The reversal of 616261199 is 991162616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616261199 - 2⁸ = 616260943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616261099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308130599 + 308130600.

It is an arithmetic number, because the mean of its divisors is an integer number (308130600).

Almost surely, 2^616261199 is an apocalyptic number.

616261199 is a deficient number, since it is larger than the sum of its proper divisors (1).

616261199 is an equidigital number, since it uses as much as digits as its factorization.

616261199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The square root of 616261199 is about 24824.6087381050. The cubic root of 616261199 is about 850.9844184051.

The spelling of 616261199 in words is "six hundred sixteen million, two hundred sixty-one thousand, one hundred ninety-nine".