1131376725 has 36 divisors (see below), whose sum is σ = 2036110752. Its totient is φ = 600516000.

The previous prime is 1131376723. The next prime is 1131376733. The reversal of 1131376725 is 5276731311.

It is not a de Polignac number, because 1131376725 - 2¹ = 1131376723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131376725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131376723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35560 + ... + 59390.

It is an arithmetic number, because the mean of its divisors is an integer number (56558632).

Almost surely, 2^1131376725 is an apocalyptic number.

1131376725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131376725 is a deficient number, since it is larger than the sum of its proper divisors (904734027).

1131376725 is a wasteful number, since it uses less digits than its factorization.

1131376725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24058 (or 24050 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1131376725 is about 33635.9439439419. The cubic root of 1131376725 is about 1042.0032655858.

The spelling of 1131376725 in words is "one billion, one hundred thirty-one million, three hundred seventy-six thousand, seven hundred twenty-five".