61013938 has 8 divisors (see below), whose sum is σ = 91579932. Its totient is φ = 30487296.

The previous prime is 61013929. The next prime is 61013957. The reversal of 61013938 is 83931016.

It can be written as a sum of positive squares in 2 ways, for example, as 55756089 + 5257849 = 7467^2 + 2293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5595 + ... + 12382.

Almost surely, 2^61013938 is an apocalyptic number.

61013938 is a deficient number, since it is larger than the sum of its proper divisors (30565994).

61013938 is a wasteful number, since it uses less digits than its factorization.

61013938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19676.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 61013938 is about 7811.1419139585. The cubic root of 61013938 is about 393.6796979383.

The spelling of 61013938 in words is "sixty-one million, thirteen thousand, nine hundred thirty-eight".