985145453 has 4 divisors (see below), whose sum is σ = 1027977888. Its totient is φ = 942313020.

The previous prime is 985145449. The next prime is 985145527. The reversal of 985145453 is 354541589.

It is a happy number.

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: 354541589 = 2687 ⋅131947.

It is a cyclic number.

It is not a de Polignac number, because 985145453 - 2² = 985145449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985145353) 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, 21416183 + ... + 21416228.

It is an arithmetic number, because the mean of its divisors is an integer number (256994472).

Almost surely, 2^985145453 is an apocalyptic number.

It is an amenable number.

985145453 is a deficient number, since it is larger than the sum of its proper divisors (42832435).

985145453 is a wasteful number, since it uses less digits than its factorization.

985145453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42832434.

The product of its digits is 432000, while the sum is 44.

The square root of 985145453 is about 31387.0268263816. The cubic root of 985145453 is about 995.0237624688.

The spelling of 985145453 in words is "nine hundred eighty-five million, one hundred forty-five thousand, four hundred fifty-three".