1147137756 has 12 divisors (see below), whose sum is σ = 2676654792. Its totient is φ = 382379248.

The previous prime is 1147137737. The next prime is 1147137773. The reversal of 1147137756 is 6577317411.

It is a happy number.

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

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, 47797395 + ... + 47797418.

It is an arithmetic number, because the mean of its divisors is an integer number (223054566).

Almost surely, 2^1147137756 is an apocalyptic number.

It is an amenable number.

1147137756 is an abundant number, since it is smaller than the sum of its proper divisors (1529517036).

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

1147137756 is a wasteful number, since it uses less digits than its factorization.

1147137756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95594820 (or 95594818 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 1147137756 is about 33869.4221385603. The cubic root of 1147137756 is about 1046.8196301432.

The spelling of 1147137756 in words is "one billion, one hundred forty-seven million, one hundred thirty-seven thousand, seven hundred fifty-six".