695131613 has 4 divisors (see below), whose sum is σ = 758325408. Its totient is φ = 631937820.

The previous prime is 695131609. The next prime is 695131667. The reversal of 695131613 is 316131596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 695131613 - 2² = 695131609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695131603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31596881 + ... + 31596902.

It is an arithmetic number, because the mean of its divisors is an integer number (189581352).

Almost surely, 2^695131613 is an apocalyptic number.

It is an amenable number.

695131613 is a deficient number, since it is larger than the sum of its proper divisors (63193795).

695131613 is a wasteful number, since it uses less digits than its factorization.

695131613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63193794.

The product of its digits is 14580, while the sum is 35.

The square root of 695131613 is about 26365.3487175876. The cubic root of 695131613 is about 885.8408015834.

The spelling of 695131613 in words is "six hundred ninety-five million, one hundred thirty-one thousand, six hundred thirteen".