20152130 has 8 divisors (see below), whose sum is σ = 36273852. Its totient is φ = 8060848.

The previous prime is 20152127. The next prime is 20152159. The reversal of 20152130 is 3125102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18671041 + 1481089 = 4321^2 + 1217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20152130² = 812216687073800, which contains 22 as substring.

It is a Curzon 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, 1007597 + ... + 1007616.

Almost surely, 2^20152130 is an apocalyptic number.

20152130 is a deficient number, since it is larger than the sum of its proper divisors (16121722).

20152130 is a wasteful number, since it uses less digits than its factorization.

20152130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015220.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20152130 is about 4489.1123844252. The cubic root of 20152130 is about 272.1282645492.

Adding to 20152130 its reverse (3125102), we get a palindrome (23277232).

The spelling of 20152130 in words is "twenty million, one hundred fifty-two thousand, one hundred thirty".