613265131 has 2 divisors, whose sum is σ = 613265132. Its totient is φ = 613265130.

The previous prime is 613265129. The next prime is 613265161. The reversal of 613265131 is 131562316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 613265131 - 2¹ = 613265129 is a prime.

It is a super-2 number, since 2×613265131² = 752188241800894322, which contains 22 as substring.

Together with 613265129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 613265131.

It is not a weakly prime, because it can be changed into another prime (613265101) 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, 306632565 + 306632566.

It is an arithmetic number, because the mean of its divisors is an integer number (306632566).

Almost surely, 2^613265131 is an apocalyptic number.

613265131 is a deficient number, since it is larger than the sum of its proper divisors (1).

613265131 is an equidigital number, since it uses as much as digits as its factorization.

613265131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 613265131 is about 24764.1904975713. The cubic root of 613265131 is about 849.6031046697.

The spelling of 613265131 in words is "six hundred thirteen million, two hundred sixty-five thousand, one hundred thirty-one".