61456317 has 32 divisors (see below), whose sum is σ = 93582720. Its totient is φ = 35562240.

The previous prime is 61456273. The next prime is 61456337. The reversal of 61456317 is 71365416.

It is not a de Polignac number, because 61456317 - 2¹⁰ = 61455293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61456337) 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, 145767 + ... + 146187.

It is an arithmetic number, because the mean of its divisors is an integer number (2924460).

Almost surely, 2^61456317 is an apocalyptic number.

It is an amenable number.

61456317 is a deficient number, since it is larger than the sum of its proper divisors (32126403).

61456317 is a wasteful number, since it uses less digits than its factorization.

61456317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its digits is 15120, while the sum is 33.

The square root of 61456317 is about 7839.4079495839. The cubic root of 61456317 is about 394.6288603830.

Subtracting 61456317 from its reverse (71365416), we obtain a palindrome (9909099).

The spelling of 61456317 in words is "sixty-one million, four hundred fifty-six thousand, three hundred seventeen".