61319902 has 32 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 25678464.

The previous prime is 61319893. The next prime is 61319911. The reversal of 61319902 is 20991316.

It is an interprime number because it is at equal distance from previous prime (61319893) and next prime (61319911).

Together with 46237730 it forms an amicable pair .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131073 + ... + 131539.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^61319902 is an apocalyptic number.

61319902 is a deficient number, since it is larger than the sum of its proper divisors (46237730).

61319902 is a wasteful number, since it uses less digits than its factorization.

61319902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 61319902 is about 7830.7025227626. The cubic root of 61319902 is about 394.3366572963.

The spelling of 61319902 in words is "sixty-one million, three hundred nineteen thousand, nine hundred two".