15249061 has 2 divisors, whose sum is σ = 15249062. Its totient is φ = 15249060.

The previous prime is 15249049. The next prime is 15249071. The reversal of 15249061 is 16094251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15249025 + 36 = 3905^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 15249061 - 2⁵ = 15249029 is a prime.

It is a super-2 number, since 2×15249061² = 465067722763442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15249071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7624530 + 7624531.

It is an arithmetic number, because the mean of its divisors is an integer number (7624531).

Almost surely, 2^15249061 is an apocalyptic number.

It is an amenable number.

15249061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15249061 is an equidigital number, since it uses as much as digits as its factorization.

15249061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 15249061 is about 3905.0046094723. The cubic root of 15249061 is about 247.9786933221.

It can be divided in two parts, 1524 and 9061, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 15249061 in words is "fifteen million, two hundred forty-nine thousand, sixty-one".