61310464 has 20 divisors (see below), whose sum is σ = 122502204. Its totient is φ = 30654976.

The previous prime is 61310461. The next prime is 61310471. The reversal of 61310464 is 46401316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61310461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59362 + ... + 60385.

Almost surely, 2^61310464 is an apocalyptic number.

61310464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61310464 is a deficient number, since it is larger than the sum of its proper divisors (61191740).

61310464 is an equidigital number, since it uses as much as digits as its factorization.

61310464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119765 (or 119749 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 61310464 is about 7830.0998716491. The cubic root of 61310464 is about 394.3164249291.

The spelling of 61310464 in words is "sixty-one million, three hundred ten thousand, four hundred sixty-four".