1115126772 has 12 divisors (see below), whose sum is σ = 2601962496. Its totient is φ = 371708920.

The previous prime is 1115126737. The next prime is 1115126801. The reversal of 1115126772 is 2776215111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1115126772² = 2487015435262279968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46463604 + ... + 46463627.

It is an arithmetic number, because the mean of its divisors is an integer number (216830208).

Almost surely, 2^1115126772 is an apocalyptic number.

1115126772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1115126772 is an abundant number, since it is smaller than the sum of its proper divisors (1486835724).

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

1115126772 is a wasteful number, since it uses less digits than its factorization.

1115126772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92927238 (or 92927236 counting only the distinct ones).

The product of its digits is 5880, while the sum is 33.

The square root of 1115126772 is about 33393.5139211195. The cubic root of 1115126772 is about 1036.9904276935.

The spelling of 1115126772 in words is "one billion, one hundred fifteen million, one hundred twenty-six thousand, seven hundred seventy-two".