15030997 has 2 divisors, whose sum is σ = 15030998. Its totient is φ = 15030996.

The previous prime is 15030989. The next prime is 15031021. The reversal of 15030997 is 79903051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14182756 + 848241 = 3766^2 + 921^2 .

It is a cyclic number.

It is not a de Polignac number, because 15030997 - 2³ = 15030989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15030947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7515498 + 7515499.

It is an arithmetic number, because the mean of its divisors is an integer number (7515499).

Almost surely, 2^15030997 is an apocalyptic number.

It is an amenable number.

15030997 is a deficient number, since it is larger than the sum of its proper divisors (1).

15030997 is an equidigital number, since it uses as much as digits as its factorization.

15030997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 15030997 is about 3876.9829764909. The cubic root of 15030997 is about 246.7909687195.

The spelling of 15030997 in words is "fifteen million, thirty thousand, nine hundred ninety-seven".