61317039 has 32 divisors (see below), whose sum is σ = 97320960. Its totient is φ = 33602400.

The previous prime is 61317037. The next prime is 61317083. The reversal of 61317039 is 93071316.

It is not a de Polignac number, because 61317039 - 2¹ = 61317037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61316997 and 61317015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61317031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84922 + ... + 85640.

It is an arithmetic number, because the mean of its divisors is an integer number (3041280).

Almost surely, 2^61317039 is an apocalyptic number.

61317039 is a deficient number, since it is larger than the sum of its proper divisors (36003921).

61317039 is a wasteful number, since it uses less digits than its factorization.

61317039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 61317039 is about 7830.5197145528. The cubic root of 61317039 is about 394.3305200642.

The spelling of 61317039 in words is "sixty-one million, three hundred seventeen thousand, thirty-nine".