969131745 has 12 divisors (see below), whose sum is σ = 1679828436. Its totient is φ = 516870240.

The previous prime is 969131743. The next prime is 969131747. The reversal of 969131745 is 547131969.

It is an interprime number because it is at equal distance from previous prime (969131743) and next prime (969131747).

It can be written as a sum of positive squares in 2 ways, for example, as 172029456 + 797102289 = 13116^2 + 28233^2 .

It is not a de Polignac number, because 969131745 - 2¹ = 969131743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 21536261 = 969131745 / (9 + 6 + 9 + 1 + 3 + 1 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 969131745.

It is not an unprimeable number, because it can be changed into a prime (969131743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10768086 + ... + 10768175.

It is an arithmetic number, because the mean of its divisors is an integer number (139985703).

Almost surely, 2^969131745 is an apocalyptic number.

It is an amenable number.

969131745 is a deficient number, since it is larger than the sum of its proper divisors (710696691).

969131745 is a wasteful number, since it uses less digits than its factorization.

969131745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536272 (or 21536269 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 969131745 is about 31130.8808902029. The cubic root of 969131745 is about 989.6028557030.

The spelling of 969131745 in words is "nine hundred sixty-nine million, one hundred thirty-one thousand, seven hundred forty-five".