61310963 has 16 divisors (see below), whose sum is σ = 73426944. Its totient is φ = 50086080.

The previous prime is 61310957. The next prime is 61310987. The reversal of 61310963 is 36901316.

It is not a de Polignac number, because 61310963 - 2⁸ = 61310707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61310933) 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 15 ways as a sum of consecutive naturals, for example, 12431 + ... + 16647.

It is an arithmetic number, because the mean of its divisors is an integer number (4589184).

Almost surely, 2^61310963 is an apocalyptic number.

61310963 is a deficient number, since it is larger than the sum of its proper divisors (12115981).

61310963 is a wasteful number, since it uses less digits than its factorization.

61310963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 61310963 is about 7830.1317358011. The cubic root of 61310963 is about 394.3174946941.

The spelling of 61310963 in words is "sixty-one million, three hundred ten thousand, nine hundred sixty-three".