61612413 has 4 divisors (see below), whose sum is σ = 82149888. Its totient is φ = 41074940.

The previous prime is 61612391. The next prime is 61612427. The reversal of 61612413 is 31421616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61612413 - 2⁶ = 61612349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61612433) 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, 10268733 + ... + 10268738.

It is an arithmetic number, because the mean of its divisors is an integer number (20537472).

Almost surely, 2^61612413 is an apocalyptic number.

It is an amenable number.

61612413 is a deficient number, since it is larger than the sum of its proper divisors (20537475).

61612413 is a wasteful number, since it uses less digits than its factorization.

61612413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537474.

The product of its digits is 864, while the sum is 24.

The square root of 61612413 is about 7849.3574896293. The cubic root of 61612413 is about 394.9626904888.

The spelling of 61612413 in words is "sixty-one million, six hundred twelve thousand, four hundred thirteen".