61615465 has 8 divisors (see below), whose sum is σ = 74829888. Its totient is φ = 48698160.

The previous prime is 61615451. The next prime is 61615469. The reversal of 61615465 is 56451616.

It is a happy number.

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

It is not a de Polignac number, because 61615465 - 2²³ = 53226857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61615465.

It is not an unprimeable number, because it can be changed into a prime (61615469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73821 + ... + 74650.

It is an arithmetic number, because the mean of its divisors is an integer number (9353736).

Almost surely, 2^61615465 is an apocalyptic number.

It is an amenable number.

61615465 is a deficient number, since it is larger than the sum of its proper divisors (13214423).

61615465 is a wasteful number, since it uses less digits than its factorization.

61615465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148559.

The product of its digits is 21600, while the sum is 34.

The square root of 61615465 is about 7849.5518980385. The cubic root of 61615465 is about 394.9692119356.

The spelling of 61615465 in words is "sixty-one million, six hundred fifteen thousand, four hundred sixty-five".