15990151 has 2 divisors, whose sum is σ = 15990152. Its totient is φ = 15990150.

The previous prime is 15990131. The next prime is 15990157. The reversal of 15990151 is 15109951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15990151 - 2⁵ = 15990119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15990157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7995075 + 7995076.

It is an arithmetic number, because the mean of its divisors is an integer number (7995076).

Almost surely, 2^15990151 is an apocalyptic number.

15990151 is a deficient number, since it is larger than the sum of its proper divisors (1).

15990151 is an equidigital number, since it uses as much as digits as its factorization.

15990151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 31.

The square root of 15990151 is about 3998.7686854831. The cubic root of 15990151 is about 251.9324953562.

The spelling of 15990151 in words is "fifteen million, nine hundred ninety thousand, one hundred fifty-one".