1154928897 has 6 divisors (see below), whose sum is σ = 1668230642. Its totient is φ = 769952592.

The previous prime is 1154928893. The next prime is 1154928913. The reversal of 1154928897 is 7988294511.

It is a happy number.

1154928897 is a `hidden beast` number, since 1 + 1 + 549 + 2 + 8 + 8 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1154912256 + 16641 = 33984^2 + 129^2 .

It is not a de Polignac number, because 1154928897 - 2² = 1154928893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154928893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64162708 + ... + 64162725.

Almost surely, 2^1154928897 is an apocalyptic number.

It is an amenable number.

1154928897 is a deficient number, since it is larger than the sum of its proper divisors (513301745).

1154928897 is a wasteful number, since it uses less digits than its factorization.

1154928897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128325439 (or 128325436 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 1154928897 is about 33984.2448349231. The cubic root of 1154928897 is about 1049.1842180551.

The spelling of 1154928897 in words is "one billion, one hundred fifty-four million, nine hundred twenty-eight thousand, eight hundred ninety-seven".