1125215736 has 32 divisors (see below), whose sum is σ = 2826384000. Its totient is φ = 373292640.

The previous prime is 1125215731. The next prime is 1125215779. The reversal of 1125215736 is 6375125211.

It is a super-2 number, since 2×1125215736² = 2532220905084043392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1125215697 and 1125215706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125215731) 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, 106036 + ... + 116163.

It is an arithmetic number, because the mean of its divisors is an integer number (88324500).

Almost surely, 2^1125215736 is an apocalyptic number.

It is an amenable number.

1125215736 is an abundant number, since it is smaller than the sum of its proper divisors (1701168264).

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

1125215736 is a wasteful number, since it uses less digits than its factorization.

1125215736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222419 (or 222415 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 1125215736 is about 33544.2355107401. The cubic root of 1125215736 is about 1040.1083886047.

The spelling of 1125215736 in words is "one billion, one hundred twenty-five million, two hundred fifteen thousand, seven hundred thirty-six".