1154977922 has 18 divisors (see below), whose sum is σ = 2015905833. Its totient is φ = 494846352.

The previous prime is 1154977907. The next prime is 1154977931. The reversal of 1154977922 is 2297794511.

It can be written as a sum of positive squares in 2 ways, for example, as 1120977361 + 34000561 = 33481^2 + 5831^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24031.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 334718 + ... + 338150.

Almost surely, 2^1154977922 is an apocalyptic number.

1154977922 is a deficient number, since it is larger than the sum of its proper divisors (860927911).

1154977922 is an frugal number, since it uses more digits than its factorization.

1154977922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882 (or 3442 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 1154977922 is about 33984.9661173878. The cubic root of 1154977922 is about 1049.1990632774.

The spelling of 1154977922 in words is "one billion, one hundred fifty-four million, nine hundred seventy-seven thousand, nine hundred twenty-two".