1154555372 has 6 divisors (see below), whose sum is σ = 2020471908. Its totient is φ = 577277684.

The previous prime is 1154555333. The next prime is 1154555377. The reversal of 1154555372 is 2735554511.

It is not an unprimeable number, because it can be changed into a prime (1154555377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144319418 + ... + 144319425.

It is an arithmetic number, because the mean of its divisors is an integer number (336745318).

Almost surely, 2^1154555372 is an apocalyptic number.

It is an amenable number.

1154555372 is a deficient number, since it is larger than the sum of its proper divisors (865916536).

1154555372 is a wasteful number, since it uses less digits than its factorization.

1154555372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288638847 (or 288638845 counting only the distinct ones).

The product of its digits is 105000, while the sum is 38.

The square root of 1154555372 is about 33978.7488292315. The cubic root of 1154555372 is about 1049.0710974430.

The spelling of 1154555372 in words is "one billion, one hundred fifty-four million, five hundred fifty-five thousand, three hundred seventy-two".