1125690727 has 4 divisors (see below), whose sum is σ = 1286503696. Its totient is φ = 964877760.

The previous prime is 1125690689. The next prime is 1125690743. The reversal of 1125690727 is 7270965211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1125690727 is a prime.

It is a super-2 number, since 2×1125690727² = 2534359225707577058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125690727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125690427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80406474 + ... + 80406487.

It is an arithmetic number, because the mean of its divisors is an integer number (321625924).

Almost surely, 2^1125690727 is an apocalyptic number.

1125690727 is a deficient number, since it is larger than the sum of its proper divisors (160812969).

1125690727 is an equidigital number, since it uses as much as digits as its factorization.

1125690727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160812968.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 1125690727 is about 33551.3148326560. The cubic root of 1125690727 is about 1040.2547228015.

The spelling of 1125690727 in words is "one billion, one hundred twenty-five million, six hundred ninety thousand, seven hundred twenty-seven".