61316137 has 8 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 58544640.

The previous prime is 61316119. The next prime is 61316149. The reversal of 61316137 is 73161316.

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

It is a cyclic number.

It is not a de Polignac number, because 61316137 - 2²³ = 52927529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61316107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12664 + ... + 16822.

It is an arithmetic number, because the mean of its divisors is an integer number (8012160).

Almost surely, 2^61316137 is an apocalyptic number.

It is an amenable number.

61316137 is a deficient number, since it is larger than the sum of its proper divisors (2781143).

61316137 is a wasteful number, since it uses less digits than its factorization.

61316137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823.

The product of its digits is 2268, while the sum is 28.

The square root of 61316137 is about 7830.4621191856. The cubic root of 61316137 is about 394.3285864642.

The spelling of 61316137 in words is "sixty-one million, three hundred sixteen thousand, one hundred thirty-seven".