1275136522 has 16 divisors (see below), whose sum is σ = 2105056512. Its totient is φ = 574477120.

The previous prime is 1275136507. The next prime is 1275136627. The reversal of 1275136522 is 2256315721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253978 + ... + 258949.

It is an arithmetic number, because the mean of its divisors is an integer number (131566032).

Almost surely, 2^1275136522 is an apocalyptic number.

1275136522 is a deficient number, since it is larger than the sum of its proper divisors (829919990).

1275136522 is a wasteful number, since it uses less digits than its factorization.

1275136522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513053.

The product of its digits is 25200, while the sum is 34.

The square root of 1275136522 is about 35709.0537819192. The cubic root of 1275136522 is about 1084.3901439438.

The spelling of 1275136522 in words is "one billion, two hundred seventy-five million, one hundred thirty-six thousand, five hundred twenty-two".