15232993 has 2 divisors, whose sum is σ = 15232994. Its totient is φ = 15232992.

The previous prime is 15232991. The next prime is 15232999. The reversal of 15232993 is 39923251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 4941729 = 3208^2 + 2223^2 .

It is a cyclic number.

It is not a de Polignac number, because 15232993 - 2¹ = 15232991 is a prime.

Together with 15232991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15232991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7616496 + 7616497.

It is an arithmetic number, because the mean of its divisors is an integer number (7616497).

Almost surely, 2^15232993 is an apocalyptic number.

It is an amenable number.

15232993 is a deficient number, since it is larger than the sum of its proper divisors (1).

15232993 is an equidigital number, since it uses as much as digits as its factorization.

15232993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 15232993 is about 3902.9467072969. The cubic root of 15232993 is about 247.8915639798.

The spelling of 15232993 in words is "fifteen million, two hundred thirty-two thousand, nine hundred ninety-three".