61320610 has 16 divisors (see below), whose sum is σ = 118867896. Its totient is φ = 22641408.

The previous prime is 61320607. The next prime is 61320617. The reversal of 61320610 is 1602316.

It can be written as a sum of positive squares in 4 ways, for example, as 31147561 + 30173049 = 5581^2 + 5493^2 .

It is not an unprimeable number, because it can be changed into a prime (61320617) 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, 235719 + ... + 235978.

Almost surely, 2^61320610 is an apocalyptic number.

61320610 is a deficient number, since it is larger than the sum of its proper divisors (57547286).

61320610 is a wasteful number, since it uses less digits than its factorization.

61320610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471717.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 61320610 is about 7830.7477293040. The cubic root of 61320610 is about 394.3381749617.

Adding to 61320610 its reverse (1602316), we get a palindrome (62922926).

The spelling of 61320610 in words is "sixty-one million, three hundred twenty thousand, six hundred ten".