15195001 has 2 divisors, whose sum is σ = 15195002. Its totient is φ = 15195000.

The previous prime is 15194999. The next prime is 15195007. The reversal of 15195001 is 10059151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 3326976 = 3445^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 15195001 - 2¹ = 15194999 is a prime.

Together with 15194999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15195007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7597500 + 7597501.

It is an arithmetic number, because the mean of its divisors is an integer number (7597501).

Almost surely, 2^15195001 is an apocalyptic number.

It is an amenable number.

15195001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15195001 is an equidigital number, since it uses as much as digits as its factorization.

15195001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 15195001 is about 3898.0765769800. The cubic root of 15195001 is about 247.6853069261.

The spelling of 15195001 in words is "fifteen million, one hundred ninety-five thousand, one".