20161453 has 8 divisors (see below), whose sum is σ = 22217888. Its totient is φ = 18177264.

The previous prime is 20161441. The next prime is 20161457. The reversal of 20161453 is 35416102.

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 20161453 - 2⁹ = 20160941 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 (20161457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17475 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (2777236).

Almost surely, 2^20161453 is an apocalyptic number.

It is an amenable number.

20161453 is a deficient number, since it is larger than the sum of its proper divisors (2056435).

20161453 is a wasteful number, since it uses less digits than its factorization.

20161453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36123.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20161453 is about 4490.1506656236. The cubic root of 20161453 is about 272.1702230696.

Adding to 20161453 its reverse (35416102), we get a palindrome (55577555).

The spelling of 20161453 in words is "twenty million, one hundred sixty-one thousand, four hundred fifty-three".