18249051 has 16 divisors (see below), whose sum is σ = 25744896. Its totient is φ = 11474496.

The previous prime is 18249043. The next prime is 18249053. The reversal of 18249051 is 15094281.

It is a happy number.

It is not a de Polignac number, because 18249051 - 2³ = 18249043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18249053) 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, 3226 + ... + 6848.

It is an arithmetic number, because the mean of its divisors is an integer number (1609056).

Almost surely, 2^18249051 is an apocalyptic number.

18249051 is a deficient number, since it is larger than the sum of its proper divisors (7495845).

18249051 is a wasteful number, since it uses less digits than its factorization.

18249051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 18249051 is about 4271.8907991661. The cubic root of 18249051 is about 263.2773077770.

The spelling of 18249051 in words is "eighteen million, two hundred forty-nine thousand, fifty-one".