20152612 has 6 divisors (see below), whose sum is σ = 35267078. Its totient is φ = 10076304.

The previous prime is 20152609. The next prime is 20152619. The reversal of 20152612 is 21625102.

It can be written as a sum of positive squares in only one way, i.e., 19219456 + 933156 = 4384^2 + 966^2 .

It is a super-2 number, since 2×20152612² = 812255540845088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20152612.

It is not an unprimeable number, because it can be changed into a prime (20152619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2519073 + ... + 2519080.

Almost surely, 2^20152612 is an apocalyptic number.

It is an amenable number.

20152612 is a deficient number, since it is larger than the sum of its proper divisors (15114466).

20152612 is a wasteful number, since it uses less digits than its factorization.

20152612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038157 (or 5038155 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20152612 is about 4489.1660695501. The cubic root of 20152612 is about 272.1304341260.

Adding to 20152612 its reverse (21625102), we get a palindrome (41777714).

The spelling of 20152612 in words is "twenty million, one hundred fifty-two thousand, six hundred twelve".