18061479 has 6 divisors (see below), whose sum is σ = 26088816. Its totient is φ = 12040980.

The previous prime is 18061471. The next prime is 18061481. The reversal of 18061479 is 97416081.

18061479 is a `hidden beast` number, since 180 + 6 + 1 + 479 = 666.

It is not a de Polignac number, because 18061479 - 2³ = 18061471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18061471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1003407 + ... + 1003424.

It is an arithmetic number, because the mean of its divisors is an integer number (4348136).

Almost surely, 2^18061479 is an apocalyptic number.

18061479 is a deficient number, since it is larger than the sum of its proper divisors (8027337).

18061479 is a wasteful number, since it uses less digits than its factorization.

18061479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006837 (or 2006834 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 18061479 is about 4249.8798806555. The cubic root of 18061479 is about 262.3721717759.

The spelling of 18061479 in words is "eighteen million, sixty-one thousand, four hundred seventy-nine".