1172553 has 4 divisors (see below), whose sum is σ = 1563408. Its totient is φ = 781700.

The previous prime is 1172543. The next prime is 1172573. The reversal of 1172553 is 3552711.

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 1172553 - 2⁴ = 1172537 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1172503) 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, 195423 + ... + 195428.

It is an arithmetic number, because the mean of its divisors is an integer number (390852).

2^1172553 is an apocalyptic number.

It is an amenable number.

1172553 is a deficient number, since it is larger than the sum of its proper divisors (390855).

1172553 is an equidigital number, since it uses as much as digits as its factorization.

1172553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390854.

The product of its digits is 1050, while the sum is 24.

The square root of 1172553 is about 1082.8448642349. The cubic root of 1172553 is about 105.4494115929.

The spelling of 1172553 in words is "one million, one hundred seventy-two thousand, five hundred fifty-three".