15114241997 has 2 divisors, whose sum is σ = 15114241998. Its totient is φ = 15114241996.

The previous prime is 15114241991. The next prime is 15114242029. The reversal of 15114241997 is 79914241151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14813080681 + 301161316 = 121709^2 + 17354^2 .

It is a cyclic number.

It is not a de Polignac number, because 15114241997 - 2⁸ = 15114241741 is a prime.

It is a super-2 number, since 2×15114241997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15114241991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7557120998 + 7557120999.

It is an arithmetic number, because the mean of its divisors is an integer number (7557120999).

Almost surely, 2^15114241997 is an apocalyptic number.

It is an amenable number.

15114241997 is a deficient number, since it is larger than the sum of its proper divisors (1).

15114241997 is an equidigital number, since it uses as much as digits as its factorization.

15114241997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The spelling of 15114241997 in words is "fifteen billion, one hundred fourteen million, two hundred forty-one thousand, nine hundred ninety-seven".