15122851 has 2 divisors, whose sum is σ = 15122852. Its totient is φ = 15122850.

The previous prime is 15122819. The next prime is 15122857. The reversal of 15122851 is 15822151.

15122851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15122851 - 2⁵ = 15122819 is a prime.

It is not a weakly prime, because it can be changed into another prime (15122857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561425 + 7561426.

It is an arithmetic number, because the mean of its divisors is an integer number (7561426).

Almost surely, 2^15122851 is an apocalyptic number.

15122851 is the 2460-th centered pentagonal number.

15122851 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122851 is an equidigital number, since it uses as much as digits as its factorization.

15122851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 25.

The square root of 15122851 is about 3888.8110008073. The cubic root of 15122851 is about 247.2926590546.

It can be divided in two parts, 151228 and 51, that multiplied together give a triangular number (7712628 = T₃₉₂₇).

The spelling of 15122851 in words is "fifteen million, one hundred twenty-two thousand, eight hundred fifty-one".