61315012 has 12 divisors (see below), whose sum is σ = 117056016. Its totient is φ = 27870440.

The previous prime is 61315003. The next prime is 61315013. The reversal of 61315012 is 21051316.

It is not an unprimeable number, because it can be changed into a prime (61315013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696718 + ... + 696805.

It is an arithmetic number, because the mean of its divisors is an integer number (9754668).

Almost surely, 2^61315012 is an apocalyptic number.

It is an amenable number.

61315012 is a deficient number, since it is larger than the sum of its proper divisors (55741004).

61315012 is a wasteful number, since it uses less digits than its factorization.

61315012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393538 (or 1393536 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61315012 is about 7830.3902840152. The cubic root of 61315012 is about 394.3261747969.

Adding to 61315012 its reverse (21051316), we get a palindrome (82366328).

It can be divided in two parts, 613 and 15012, that added together give a 6-th power (15625 = 5⁶).

The spelling of 61315012 in words is "sixty-one million, three hundred fifteen thousand, twelve".