1135656912 has 160 divisors (see below), whose sum is σ = 3246542208. Its totient is φ = 339959808.

The previous prime is 1135656859. The next prime is 1135656919. The reversal of 1135656912 is 2196565311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135656919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4873948 + ... + 4874180.

Almost surely, 2^1135656912 is an apocalyptic number.

1135656912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1135656912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623271104).

1135656912 is an abundant number, since it is smaller than the sum of its proper divisors (2110885296).

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

1135656912 is a wasteful number, since it uses less digits than its factorization.

1135656912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 431 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 1135656912 is about 33699.5090765429. The cubic root of 1135656912 is about 1043.3156360973.

The spelling of 1135656912 in words is "one billion, one hundred thirty-five million, six hundred fifty-six thousand, nine hundred twelve".