20152154 has 16 divisors (see below), whose sum is σ = 33064416. Its totient is φ = 9135600.

The previous prime is 20152127. The next prime is 20152159. The reversal of 20152154 is 45125102.

It is a super-2 number, since 2×20152154² = 812218621679432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20152159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9149 + ... + 11135.

It is an arithmetic number, because the mean of its divisors is an integer number (2066526).

Almost surely, 2^20152154 is an apocalyptic number.

20152154 is a deficient number, since it is larger than the sum of its proper divisors (12912262).

20152154 is a wasteful number, since it uses less digits than its factorization.

20152154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 20152154 is about 4489.1150575587. The cubic root of 20152154 is about 272.1283725787.

Adding to 20152154 its reverse (45125102), we get a palindrome (65277256).

The spelling of 20152154 in words is "twenty million, one hundred fifty-two thousand, one hundred fifty-four".