61310630 has 16 divisors (see below), whose sum is σ = 111914784. Its totient is φ = 24178560.

The previous prime is 61310629. The next prime is 61310671. The reversal of 61310630 is 3601316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42467 + ... + 43886.

It is an arithmetic number, because the mean of its divisors is an integer number (6994674).

Almost surely, 2^61310630 is an apocalyptic number.

61310630 is a deficient number, since it is larger than the sum of its proper divisors (50604154).

61310630 is a wasteful number, since it uses less digits than its factorization.

61310630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86431.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 61310630 is about 7830.1104717622. The cubic root of 61310630 is about 394.3167808035.

Adding to 61310630 its reverse (3601316), we get a palindrome (64911946).

The spelling of 61310630 in words is "sixty-one million, three hundred ten thousand, six hundred thirty".