1153043553 has 8 divisors (see below), whose sum is σ = 1555914528. Its totient is φ = 759434144.

The previous prime is 1153043539. The next prime is 1153043569. The reversal of 1153043553 is 3553403511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1153043553 - 2⁴ = 1153043537 is a prime.

It is a super-2 number, since 2×1153043553² = 2659018870229727618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1153043553.

It is not an unprimeable number, because it can be changed into a prime (1153043453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315100 + ... + 2315597.

It is an arithmetic number, because the mean of its divisors is an integer number (194489316).

Almost surely, 2^1153043553 is an apocalyptic number.

It is an amenable number.

1153043553 is a deficient number, since it is larger than the sum of its proper divisors (402870975).

1153043553 is an equidigital number, since it uses as much as digits as its factorization.

1153043553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630783.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1153043553 is about 33956.4950046379. The cubic root of 1153043553 is about 1048.6129994834.

The spelling of 1153043553 in words is "one billion, one hundred fifty-three million, forty-three thousand, five hundred fifty-three".