20130454 has 8 divisors (see below), whose sum is σ = 30260160. Its totient is φ = 10043736.

The previous prime is 20130449. The next prime is 20130457. The reversal of 20130454 is 45403102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20130454² = 810470356492232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130457) 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, 9549 + ... + 11464.

It is an arithmetic number, because the mean of its divisors is an integer number (3782520).

Almost surely, 2^20130454 is an apocalyptic number.

20130454 is a deficient number, since it is larger than the sum of its proper divisors (10129706).

20130454 is a wasteful number, since it uses less digits than its factorization.

20130454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21494.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20130454 is about 4486.6974491267. The cubic root of 20130454 is about 272.0306608314.

Adding to 20130454 its reverse (45403102), we get a palindrome (65533556).

The spelling of 20130454 in words is "twenty million, one hundred thirty thousand, four hundred fifty-four".