165008453 has 2 divisors, whose sum is σ = 165008454. Its totient is φ = 165008452.

The previous prime is 165008449. The next prime is 165008479. The reversal of 165008453 is 354800561.

It is a happy number.

165008453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163891204 + 1117249 = 12802^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 165008453 - 2² = 165008449 is a prime.

It is a super-2 number, since 2×165008453² = 54455579122906418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165008423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82504226 + 82504227.

It is an arithmetic number, because the mean of its divisors is an integer number (82504227).

Almost surely, 2^165008453 is an apocalyptic number.

It is an amenable number.

165008453 is a deficient number, since it is larger than the sum of its proper divisors (1).

165008453 is an equidigital number, since it uses as much as digits as its factorization.

165008453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 165008453 is about 12845.5616070299. The cubic root of 165008453 is about 548.4900213600.

The spelling of 165008453 in words is "one hundred sixty-five million, eight thousand, four hundred fifty-three".