613306245 has 16 divisors (see below), whose sum is σ = 987314112. Its totient is φ = 325088640.

The previous prime is 613306219. The next prime is 613306289. The reversal of 613306245 is 542603316.

It is not a de Polignac number, because 613306245 - 2⁸ = 613305989 is a prime.

It is a super-2 number, since 2×613306245² = 752289100312000050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122976 + ... + 127865.

It is an arithmetic number, because the mean of its divisors is an integer number (61707132).

Almost surely, 2^613306245 is an apocalyptic number.

It is an amenable number.

613306245 is a deficient number, since it is larger than the sum of its proper divisors (374007867).

613306245 is a wasteful number, since it uses less digits than its factorization.

613306245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251012.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 613306245 is about 24765.0205935711. The cubic root of 613306245 is about 849.6220903686.

It can be divided in two parts, 61 and 3306245, that added together give a triangular number (3306306 = T₂₅₇₁).

The spelling of 613306245 in words is "six hundred thirteen million, three hundred six thousand, two hundred forty-five".