18468151 has 6 divisors (see below), whose sum is σ = 19998240. Its totient is φ = 17047368.

The previous prime is 18468127. The next prime is 18468161. The reversal of 18468151 is 15186481.

It is a happy number.

It is not a de Polignac number, because 18468151 - 2¹⁵ = 18435383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18468101) 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, 54471 + ... + 54808.

It is an arithmetic number, because the mean of its divisors is an integer number (3333040).

Almost surely, 2^18468151 is an apocalyptic number.

18468151 is a deficient number, since it is larger than the sum of its proper divisors (1530089).

18468151 is a wasteful number, since it uses less digits than its factorization.

18468151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109305 (or 109292 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The square root of 18468151 is about 4297.4586676314. The cubic root of 18468151 is about 264.3267638488.

The spelling of 18468151 in words is "eighteen million, four hundred sixty-eight thousand, one hundred fifty-one".