1315161542 has 32 divisors (see below), whose sum is σ = 2077358400. Its totient is φ = 623593600.

The previous prime is 1315161541. The next prime is 1315161553. The reversal of 1315161542 is 2451615131.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315161541) 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, 1601492 + ... + 1602312.

It is an arithmetic number, because the mean of its divisors is an integer number (64917450).

Almost surely, 2^1315161542 is an apocalyptic number.

1315161542 is a deficient number, since it is larger than the sum of its proper divisors (762196858).

1315161542 is a wasteful number, since it uses less digits than its factorization.

1315161542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 3600, while the sum is 29.

The square root of 1315161542 is about 36265.1560316511. The cubic root of 1315161542 is about 1095.6193661764.

Adding to 1315161542 its reverse (2451615131), we get a palindrome (3766776673).

The spelling of 1315161542 in words is "one billion, three hundred fifteen million, one hundred sixty-one thousand, five hundred forty-two".