1310872522 has 4 divisors (see below), whose sum is σ = 1966308786. Its totient is φ = 655436260.

The previous prime is 1310872513. The next prime is 1310872523. The reversal of 1310872522 is 2252780131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1308341241 + 2531281 = 36171^2 + 1591^2 .

It is not an unprimeable number, because it can be changed into a prime (1310872523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327718129 + ... + 327718132.

Almost surely, 2^1310872522 is an apocalyptic number.

1310872522 is a deficient number, since it is larger than the sum of its proper divisors (655436264).

1310872522 is an equidigital number, since it uses as much as digits as its factorization.

1310872522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655436263.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1310872522 is about 36205.9735679073. The cubic root of 1310872522 is about 1094.4270536002.

The spelling of 1310872522 in words is "one billion, three hundred ten million, eight hundred seventy-two thousand, five hundred twenty-two".