15097151 has 2 divisors, whose sum is σ = 15097152. Its totient is φ = 15097150.

The previous prime is 15097141. The next prime is 15097163. The reversal of 15097151 is 15179051.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15097151 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15097111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7548575 + 7548576.

It is an arithmetic number, because the mean of its divisors is an integer number (7548576).

Almost surely, 2^15097151 is an apocalyptic number.

15097151 is a deficient number, since it is larger than the sum of its proper divisors (1).

15097151 is an equidigital number, since it uses as much as digits as its factorization.

15097151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 15097151 is about 3885.5052438518. The cubic root of 15097151 is about 247.1524953402.

The spelling of 15097151 in words is "fifteen million, ninety-seven thousand, one hundred fifty-one".