80965453 has 4 divisors (see below), whose sum is σ = 81075168. Its totient is φ = 80855740.

The previous prime is 80965439. The next prime is 80965471. The reversal of 80965453 is 35456908.

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 a de Polignac number, because none of the positive numbers 2^k-80965453 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80965153) 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, 53743 + ... + 55228.

It is an arithmetic number, because the mean of its divisors is an integer number (20268792).

Almost surely, 2^80965453 is an apocalyptic number.

It is an amenable number.

80965453 is a deficient number, since it is larger than the sum of its proper divisors (109715).

80965453 is a wasteful number, since it uses less digits than its factorization.

80965453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109714.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 80965453 is about 8998.0805175326. The cubic root of 80965453 is about 432.6133495105.

It can be divided in two parts, 80965 and 453, that added together give a palindrome (81418).

The spelling of 80965453 in words is "eighty million, nine hundred sixty-five thousand, four hundred fifty-three".