61338015 has 24 divisors (see below), whose sum is σ = 106947360. Its totient is φ = 32520384.

The previous prime is 61337981. The next prime is 61338037. The reversal of 61338015 is 51083316.

61338015 is a `hidden beast` number, since 613 + 38 + 0 + 15 = 666.

It is not a de Polignac number, because 61338015 - 2¹³ = 61329823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61338015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3846 + ... + 11724.

It is an arithmetic number, because the mean of its divisors is an integer number (4456140).

Almost surely, 2^61338015 is an apocalyptic number.

61338015 is a deficient number, since it is larger than the sum of its proper divisors (45609345).

61338015 is a wasteful number, since it uses less digits than its factorization.

61338015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61338015 is about 7831.8589747262. The cubic root of 61338015 is about 394.3754805630.

The spelling of 61338015 in words is "sixty-one million, three hundred thirty-eight thousand, fifteen".