1125815726 has 16 divisors (see below), whose sum is σ = 1932374880. Its totient is φ = 481891200.

The previous prime is 1125815711. The next prime is 1125815741. The reversal of 1125815726 is 6275185211.

It is an interprime number because it is at equal distance from previous prime (1125815711) and next prime (1125815741).

It is a super-2 number, since 2×1125815726² = 2534922097817814152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125815726.

It is a congruent number.

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, 38375 + ... + 61026.

It is an arithmetic number, because the mean of its divisors is an integer number (120773430).

Almost surely, 2^1125815726 is an apocalyptic number.

1125815726 is a deficient number, since it is larger than the sum of its proper divisors (806559154).

1125815726 is an equidigital number, since it uses as much as digits as its factorization.

1125815726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100219.

The product of its digits is 33600, while the sum is 38.

The square root of 1125815726 is about 33553.1775842468. The cubic root of 1125815726 is about 1040.2932253802.

The spelling of 1125815726 in words is "one billion, one hundred twenty-five million, eight hundred fifteen thousand, seven hundred twenty-six".