188974453 has 4 divisors (see below), whose sum is σ = 193583628. Its totient is φ = 184365280.

The previous prime is 188974441. The next prime is 188974459. The reversal of 188974453 is 354479881.

188974453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73153809 + 115820644 = 8553^2 + 10762^2 .

It is a cyclic number.

It is not a de Polignac number, because 188974453 - 2¹⁷ = 188843381 is a prime.

It is a super-2 number, since 2×188974453² = 71422687773298418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188974397 and 188974406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188974459) 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, 2304526 + ... + 2304607.

It is an arithmetic number, because the mean of its divisors is an integer number (48395907).

Almost surely, 2^188974453 is an apocalyptic number.

It is an amenable number.

188974453 is a deficient number, since it is larger than the sum of its proper divisors (4609175).

188974453 is an equidigital number, since it uses as much as digits as its factorization.

188974453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609174.

The product of its digits is 967680, while the sum is 49.

The square root of 188974453 is about 13746.7979180608. The cubic root of 188974453 is about 573.8534967074.

The spelling of 188974453 in words is "one hundred eighty-eight million, nine hundred seventy-four thousand, four hundred fifty-three".