15148009 has 2 divisors, whose sum is σ = 15148010. Its totient is φ = 15148008.

The previous prime is 15147973. The next prime is 15148031. The reversal of 15148009 is 90084151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 1272384 = 3725^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 15148009 - 2⁹ = 15147497 is a prime.

It is not a weakly prime, because it can be changed into another prime (15148039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7574004 + 7574005.

It is an arithmetic number, because the mean of its divisors is an integer number (7574005).

Almost surely, 2^15148009 is an apocalyptic number.

It is an amenable number.

15148009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15148009 is an equidigital number, since it uses as much as digits as its factorization.

15148009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 15148009 is about 3892.0443214331. The cubic root of 15148009 is about 247.4297130617.

The spelling of 15148009 in words is "fifteen million, one hundred forty-eight thousand, nine".