61915413 has 8 divisors (see below), whose sum is σ = 94347328. Its totient is φ = 35380224.

The previous prime is 61915409. The next prime is 61915423. The reversal of 61915413 is 31451916.

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

It is not a de Polignac number, because 61915413 - 2² = 61915409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61915423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474156 + ... + 1474197.

It is an arithmetic number, because the mean of its divisors is an integer number (11793416).

Almost surely, 2^61915413 is an apocalyptic number.

It is an amenable number.

61915413 is a deficient number, since it is larger than the sum of its proper divisors (32431915).

61915413 is a wasteful number, since it uses less digits than its factorization.

61915413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948363.

The product of its digits is 3240, while the sum is 30.

The square root of 61915413 is about 7868.6347608718. The cubic root of 61915413 is about 395.6090864823.

The spelling of 61915413 in words is "sixty-one million, nine hundred fifteen thousand, four hundred thirteen".