15387089 has 2 divisors, whose sum is σ = 15387090. Its totient is φ = 15387088.

The previous prime is 15387041. The next prime is 15387101. The reversal of 15387089 is 98078351.

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., 13987600 + 1399489 = 3740^2 + 1183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15387089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15387289) 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, 7693544 + 7693545.

It is an arithmetic number, because the mean of its divisors is an integer number (7693545).

Almost surely, 2^15387089 is an apocalyptic number.

It is an amenable number.

15387089 is a deficient number, since it is larger than the sum of its proper divisors (1).

15387089 is an equidigital number, since it uses as much as digits as its factorization.

15387089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 15387089 is about 3922.6380154177. The cubic root of 15387089 is about 248.7246462884.

The spelling of 15387089 in words is "fifteen million, three hundred eighty-seven thousand, eighty-nine".