1316901731 has 16 divisors (see below), whose sum is σ = 1432608768. Its totient is φ = 1206876000.

The previous prime is 1316901727. The next prime is 1316901749. The reversal of 1316901731 is 1371096131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1316901731 - 2² = 1316901727 is a prime.

It is a super-2 number, since 2×1316901731² = 3468460338221592722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316901701) 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, 62870 + ... + 81156.

It is an arithmetic number, because the mean of its divisors is an integer number (89538048).

Almost surely, 2^1316901731 is an apocalyptic number.

1316901731 is a deficient number, since it is larger than the sum of its proper divisors (115707037).

1316901731 is a wasteful number, since it uses less digits than its factorization.

1316901731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18442.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1316901731 is about 36289.1406759653. The cubic root of 1316901731 is about 1096.1023852861.

Adding to 1316901731 its reverse (1371096131), we get a palindrome (2687997862).

The spelling of 1316901731 in words is "one billion, three hundred sixteen million, nine hundred one thousand, seven hundred thirty-one".