1317431262 has 16 divisors (see below), whose sum is σ = 3011271552. Its totient is φ = 376408920.

The previous prime is 1317431261. The next prime is 1317431263. The reversal of 1317431262 is 2621347131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1317431261) and next prime (1317431263).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317431261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15683664 + ... + 15683747.

It is an arithmetic number, because the mean of its divisors is an integer number (188204472).

Almost surely, 2^1317431262 is an apocalyptic number.

1317431262 is an abundant number, since it is smaller than the sum of its proper divisors (1693840290).

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

1317431262 is a wasteful number, since it uses less digits than its factorization.

1317431262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31367423.

The product of its digits is 6048, while the sum is 30.

The square root of 1317431262 is about 36296.4359407367. The cubic root of 1317431262 is about 1096.2492811908.

Adding to 1317431262 its reverse (2621347131), we get a palindrome (3938778393).

The spelling of 1317431262 in words is "one billion, three hundred seventeen million, four hundred thirty-one thousand, two hundred sixty-two".