1172424445 has 8 divisors (see below), whose sum is σ = 1411406136. Its totient is φ = 934941696.

The previous prime is 1172424437. The next prime is 1172424467. The reversal of 1172424445 is 5444242711.

It can be written as a sum of positive squares in 4 ways, for example, as 2579236 + 1169845209 = 1606^2 + 34203^2 .

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 1172424445 - 2³ = 1172424437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172424445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373012 + ... + 376141.

It is an arithmetic number, because the mean of its divisors is an integer number (176425767).

Almost surely, 2^1172424445 is an apocalyptic number.

It is an amenable number.

1172424445 is a deficient number, since it is larger than the sum of its proper divisors (238981691).

1172424445 is an equidigital number, since it uses as much as digits as its factorization.

1172424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749471.

The product of its digits is 35840, while the sum is 34.

The square root of 1172424445 is about 34240.6840615079. The cubic root of 1172424445 is about 1054.4555773884.

The spelling of 1172424445 in words is "one billion, one hundred seventy-two million, four hundred twenty-four thousand, four hundred forty-five".