1261369096 has 32 divisors (see below), whose sum is σ = 2549899800. Its totient is φ = 581506560.

The previous prime is 1261369079. The next prime is 1261369097. The reversal of 1261369096 is 6909631621.

It can be written as a sum of positive squares in 4 ways, for example, as 1024640100 + 236728996 = 32010^2 + 15386^2 .

It is not an unprimeable number, because it can be changed into a prime (1261369097) 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, 91420 + ... + 104308.

Almost surely, 2^1261369096 is an apocalyptic number.

It is an amenable number.

1261369096 is an abundant number, since it is smaller than the sum of its proper divisors (1288530704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261369096 is a wasteful number, since it uses less digits than its factorization.

1261369096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13849 (or 13845 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 1261369096 is about 35515.7584179192. The cubic root of 1261369096 is about 1080.4733567439.

The spelling of 1261369096 in words is "one billion, two hundred sixty-one million, three hundred sixty-nine thousand, ninety-six".