1317151242 has 24 divisors (see below), whose sum is σ = 3113267040. Its totient is φ = 399136680.

The previous prime is 1317151229. The next prime is 1317151247. The reversal of 1317151242 is 2421517131.

It is not an unprimeable number, because it can be changed into a prime (1317151247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3325942 + ... + 3326337.

It is an arithmetic number, because the mean of its divisors is an integer number (129719460).

Almost surely, 2^1317151242 is an apocalyptic number.

1317151242 is an abundant number, since it is smaller than the sum of its proper divisors (1796115798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317151242 is a wasteful number, since it uses less digits than its factorization.

1317151242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652298 (or 6652295 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1317151242 is about 36292.5783322155. The cubic root of 1317151242 is about 1096.1716064298.

Adding to 1317151242 its reverse (2421517131), we get a palindrome (3738668373).

The spelling of 1317151242 in words is "one billion, three hundred seventeen million, one hundred fifty-one thousand, two hundred forty-two".