1154053553 has 4 divisors (see below), whose sum is σ = 1154937840. Its totient is φ = 1153169268.

The previous prime is 1154053547. The next prime is 1154053631. The reversal of 1154053553 is 3553504511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1154053553 - 2²⁰ = 1153004977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1154023553) 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, 440183 + ... + 442796.

It is an arithmetic number, because the mean of its divisors is an integer number (288734460).

Almost surely, 2^1154053553 is an apocalyptic number.

It is an amenable number.

1154053553 is a deficient number, since it is larger than the sum of its proper divisors (884287).

1154053553 is an equidigital number, since it uses as much as digits as its factorization.

1154053553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884286.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1154053553 is about 33971.3637200510. The cubic root of 1154053553 is about 1048.9190850718.

The spelling of 1154053553 in words is "one billion, one hundred fifty-four million, fifty-three thousand, five hundred fifty-three".