1310142769 has 8 divisors (see below), whose sum is σ = 1412653032. Its totient is φ = 1207879680.

The previous prime is 1310142751. The next prime is 1310142793. The reversal of 1310142769 is 9672410131.

It can be written as a sum of positive squares in 4 ways, for example, as 788544 + 1309354225 = 888^2 + 36185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1310142769 - 2⁷ = 1310142641 is a prime.

It is a super-2 number, since 2×1310142769² = 3432948150325974722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310142709) 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, 50704 + ... + 72049.

It is an arithmetic number, because the mean of its divisors is an integer number (176581629).

Almost surely, 2^1310142769 is an apocalyptic number.

It is an amenable number.

1310142769 is a deficient number, since it is larger than the sum of its proper divisors (102510263).

1310142769 is a wasteful number, since it uses less digits than its factorization.

1310142769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123587.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1310142769 is about 36195.8943666267. The cubic root of 1310142769 is about 1094.2239294314.

The spelling of 1310142769 in words is "one billion, three hundred ten million, one hundred forty-two thousand, seven hundred sixty-nine".