1515248939 has 2 divisors, whose sum is σ = 1515248940. Its totient is φ = 1515248938.

The previous prime is 1515248909. The next prime is 1515248957. The reversal of 1515248939 is 9398425151.

It is a strong prime.

It is an emirp because it is prime and its reverse (9398425151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1515248939 - 2¹⁶ = 1515183403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1515248893 and 1515248902.

It is not a weakly prime, because it can be changed into another prime (1515248909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757624469 + 757624470.

It is an arithmetic number, because the mean of its divisors is an integer number (757624470).

Almost surely, 2^1515248939 is an apocalyptic number.

1515248939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1515248939 is an equidigital number, since it uses as much as digits as its factorization.

1515248939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 47.

The square root of 1515248939 is about 38926.1986199526. The cubic root of 1515248939 is about 1148.5802110522.

The spelling of 1515248939 in words is "one billion, five hundred fifteen million, two hundred forty-eight thousand, nine hundred thirty-nine".