1315459949 has 16 divisors (see below), whose sum is σ = 1437803136. Its totient is φ = 1198579200.

The previous prime is 1315459939. The next prime is 1315459963. The reversal of 1315459949 is 9499545131.

It is a cyclic number.

It is not a de Polignac number, because 1315459949 - 2²⁸ = 1047024493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315459897 and 1315459906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315459909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84104 + ... + 98510.

It is an arithmetic number, because the mean of its divisors is an integer number (89862696).

Almost surely, 2^1315459949 is an apocalyptic number.

It is an amenable number.

1315459949 is a deficient number, since it is larger than the sum of its proper divisors (122343187).

1315459949 is a wasteful number, since it uses less digits than its factorization.

1315459949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14596.

The product of its digits is 874800, while the sum is 50.

The square root of 1315459949 is about 36269.2700367680. The cubic root of 1315459949 is about 1095.7022243788.

The spelling of 1315459949 in words is "one billion, three hundred fifteen million, four hundred fifty-nine thousand, nine hundred forty-nine".