1310992 has 10 divisors (see below), whose sum is σ = 2540078. Its totient is φ = 655488.

The previous prime is 1310987. The next prime is 1310993. The reversal of 1310992 is 2990131.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 65536 = 1116^2 + 256^2 .

It is not an unprimeable number, because it can be changed into a prime (1310993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40953 + ... + 40984.

2^1310992 is an apocalyptic number.

It is an amenable number.

1310992 is a deficient number, since it is larger than the sum of its proper divisors (1229086).

1310992 is an equidigital number, since it uses as much as digits as its factorization.

1310992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81945 (or 81939 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1310992 is about 1144.9855894290. The cubic root of 1310992 is about 109.4460302697.

The spelling of 1310992 in words is "one million, three hundred ten thousand, nine hundred ninety-two".