1121902756 has 12 divisors (see below), whose sum is σ = 2114355292. Its totient is φ = 517801248.

The previous prime is 1121902753. The next prime is 1121902799. The reversal of 1121902756 is 6572091211.

It can be written as a sum of positive squares in 2 ways, for example, as 719097856 + 402804900 = 26816^2 + 20070^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1121902753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10787475 + ... + 10787578.

Almost surely, 2^1121902756 is an apocalyptic number.

It is an amenable number.

1121902756 is a deficient number, since it is larger than the sum of its proper divisors (992452536).

1121902756 is a wasteful number, since it uses less digits than its factorization.

1121902756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21575070 (or 21575068 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 1121902756 is about 33494.8168527610. The cubic root of 1121902756 is about 1039.0865858194.

Adding to 1121902756 its reverse (6572091211), we get a palindrome (7693993967).

The spelling of 1121902756 in words is "one billion, one hundred twenty-one million, nine hundred two thousand, seven hundred fifty-six".