15122012 has 6 divisors (see below), whose sum is σ = 26463528. Its totient is φ = 7561004.

The previous prime is 15121991. The next prime is 15122033. The reversal of 15122012 is 21022151.

It is an interprime number because it is at equal distance from previous prime (15121991) and next prime (15122033).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890248 + ... + 1890255.

It is an arithmetic number, because the mean of its divisors is an integer number (4410588).

Almost surely, 2^15122012 is an apocalyptic number.

It is an amenable number.

15122012 is a deficient number, since it is larger than the sum of its proper divisors (11341516).

15122012 is a wasteful number, since it uses less digits than its factorization.

15122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780507 (or 3780505 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 15122012 is about 3888.7031257220. The cubic root of 15122012 is about 247.2880857904.

Adding to 15122012 its reverse (21022151), we get a palindrome (36144163).

The spelling of 15122012 in words is "fifteen million, one hundred twenty-two thousand, twelve".