15048749 has 2 divisors, whose sum is σ = 15048750. Its totient is φ = 15048748.

The previous prime is 15048713. The next prime is 15048769. The reversal of 15048749 is 94784051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15015625 + 33124 = 3875^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 15048749 - 2⁸ = 15048493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15048769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7524374 + 7524375.

It is an arithmetic number, because the mean of its divisors is an integer number (7524375).

Almost surely, 2^15048749 is an apocalyptic number.

It is an amenable number.

15048749 is a deficient number, since it is larger than the sum of its proper divisors (1).

15048749 is an equidigital number, since it uses as much as digits as its factorization.

15048749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 15048749 is about 3879.2717099992. The cubic root of 15048749 is about 246.8880860232. Note that the first 3 decimals are identical.

The spelling of 15048749 in words is "fifteen million, forty-eight thousand, seven hundred forty-nine".