913661513 has 8 divisors (see below), whose sum is σ = 929332608. Its totient is φ = 898050384.

The previous prime is 913661491. The next prime is 913661519. The reversal of 913661513 is 315166319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-913661513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913661519) 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 in 7 ways as a sum of consecutive naturals, for example, 16295 + ... + 45747.

It is an arithmetic number, because the mean of its divisors is an integer number (116166576).

Almost surely, 2^913661513 is an apocalyptic number.

It is an amenable number.

913661513 is a deficient number, since it is larger than the sum of its proper divisors (15671095).

913661513 is a wasteful number, since it uses less digits than its factorization.

913661513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29983.

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

The square root of 913661513 is about 30226.8343198556. The cubic root of 913661513 is about 970.3500748679.

The spelling of 913661513 in words is "nine hundred thirteen million, six hundred sixty-one thousand, five hundred thirteen".