15147973 has 2 divisors, whose sum is σ = 15147974. Its totient is φ = 15147972.

The previous prime is 15147943. The next prime is 15148009. The reversal of 15147973 is 37974151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15108769 + 39204 = 3887^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 15147973 - 2⁵ = 15147941 is a prime.

It is a super-2 number, since 2×15147973² = 458922172017458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15147943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7573986 + 7573987.

It is an arithmetic number, because the mean of its divisors is an integer number (7573987).

Almost surely, 2^15147973 is an apocalyptic number.

It is an amenable number.

15147973 is a deficient number, since it is larger than the sum of its proper divisors (1).

15147973 is an equidigital number, since it uses as much as digits as its factorization.

15147973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 37.

The square root of 15147973 is about 3892.0396966115. The cubic root of 15147973 is about 247.4295170519.

The spelling of 15147973 in words is "fifteen million, one hundred forty-seven thousand, nine hundred seventy-three".