20150012 has 12 divisors (see below), whose sum is σ = 36478680. Its totient is φ = 9727536.

The previous prime is 20149973. The next prime is 20150021. The reversal of 20150012 is 21005102.

It is a junction number, because it is equal to n+sod(n) for n = 20149975 and 20150002.

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, 86738 + ... + 86969.

It is an arithmetic number, because the mean of its divisors is an integer number (3039890).

Almost surely, 2^20150012 is an apocalyptic number.

It is an amenable number.

20150012 is a deficient number, since it is larger than the sum of its proper divisors (16328668).

20150012 is a wasteful number, since it uses less digits than its factorization.

20150012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173740 (or 173738 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 20150012 is about 4488.8764741302. The cubic root of 20150012 is about 272.1187306049.

Adding to 20150012 its reverse (21005102), we get a palindrome (41155114).

The spelling of 20150012 in words is "twenty million, one hundred fifty thousand, twelve".