18252152 has 16 divisors (see below), whose sum is σ = 36236160. Its totient is φ = 8589184.

The previous prime is 18252139. The next prime is 18252163. The reversal of 18252152 is 25125281.

It is a super-4 number, since 4×18252152⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66968 + ... + 67239.

It is an arithmetic number, because the mean of its divisors is an integer number (2264760).

Almost surely, 2^18252152 is an apocalyptic number.

It is an amenable number.

18252152 is a deficient number, since it is larger than the sum of its proper divisors (17984008).

18252152 is a wasteful number, since it uses less digits than its factorization.

18252152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134230 (or 134226 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 18252152 is about 4272.2537377829. The cubic root of 18252152 is about 263.2922195422.

The spelling of 18252152 in words is "eighteen million, two hundred fifty-two thousand, one hundred fifty-two".