18415061 has 8 divisors (see below), whose sum is σ = 21250944. Its totient is φ = 15630480.

The previous prime is 18415031. The next prime is 18415069. The reversal of 18415061 is 16051481.

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

It is a cyclic number.

It is not a de Polignac number, because 18415061 - 2¹⁰ = 18414037 is a prime.

It is a super-2 number, since 2×18415061² = 678228943267442, which contains 22 as substring.

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 18415061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18415069) 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, 12050 + ... + 13491.

It is an arithmetic number, because the mean of its divisors is an integer number (2656368).

Almost surely, 2^18415061 is an apocalyptic number.

It is an amenable number.

18415061 is a deficient number, since it is larger than the sum of its proper divisors (2835883).

18415061 is a wasteful number, since it uses less digits than its factorization.

18415061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25651.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 18415061 is about 4291.2773156719. The cubic root of 18415061 is about 264.0732359184.

The spelling of 18415061 in words is "eighteen million, four hundred fifteen thousand, sixty-one".