1182053553 has 4 divisors (see below), whose sum is σ = 1576071408. Its totient is φ = 788035700.

The previous prime is 1182053533. The next prime is 1182053567. The reversal of 1182053553 is 3553502811.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3553502811 = 3 ⋅1184500937.

It is a cyclic number.

It is not a de Polignac number, because 1182053553 - 2⁶ = 1182053489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1182053533) 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, 197008923 + ... + 197008928.

It is an arithmetic number, because the mean of its divisors is an integer number (394017852).

Almost surely, 2^1182053553 is an apocalyptic number.

It is an amenable number.

1182053553 is a deficient number, since it is larger than the sum of its proper divisors (394017855).

1182053553 is an equidigital number, since it uses as much as digits as its factorization.

1182053553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394017854.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1182053553 is about 34381.0057008227. The cubic root of 1182053553 is about 1057.3344540194.

The spelling of 1182053553 in words is "one billion, one hundred eighty-two million, fifty-three thousand, five hundred fifty-three".