18601461 has 16 divisors (see below), whose sum is σ = 28027200. Its totient is φ = 12189744.

The previous prime is 18601459. The next prime is 18601481. The reversal of 18601461 is 16410681.

18601461 is a `hidden beast` number, since 18 + 601 + 46 + 1 = 666.

It is not a de Polignac number, because 18601461 - 2¹ = 18601459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18601421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4246 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (1751700).

Almost surely, 2^18601461 is an apocalyptic number.

It is an amenable number.

18601461 is a deficient number, since it is larger than the sum of its proper divisors (9425739).

18601461 is a wasteful number, since it uses less digits than its factorization.

18601461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745 (or 11739 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18601461 is about 4312.9411078752. The cubic root of 18601461 is about 264.9612427002.

It can be divided in two parts, 1860 and 1461, that added together give a triangular number (3321 = T₈₁).

The spelling of 18601461 in words is "eighteen million, six hundred one thousand, four hundred sixty-one".