61312602 has 16 divisors (see below), whose sum is σ = 132058080. Its totient is φ = 18865392.

The previous prime is 61312579. The next prime is 61312607. The reversal of 61312602 is 20621316.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61312607) 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, 392952 + ... + 393107.

It is an arithmetic number, because the mean of its divisors is an integer number (8253630).

Almost surely, 2^61312602 is an apocalyptic number.

61312602 is an abundant number, since it is smaller than the sum of its proper divisors (70745478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61312602 is a wasteful number, since it uses less digits than its factorization.

61312602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786077.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61312602 is about 7830.2363948989. The cubic root of 61312602 is about 394.3210083703.

Adding to 61312602 its reverse (20621316), we get a palindrome (81933918).

The spelling of 61312602 in words is "sixty-one million, three hundred twelve thousand, six hundred two".