200105454 has 32 divisors (see below), whose sum is σ = 422081280. Its totient is φ = 63070272.

The previous prime is 200105431. The next prime is 200105459. The reversal of 200105454 is 454501002.

It is a super-2 number, since 2×200105454² = 80084385441092232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200105454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200105459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72402 + ... + 75114.

It is an arithmetic number, because the mean of its divisors is an integer number (13190040).

Almost surely, 2^200105454 is an apocalyptic number.

200105454 is an abundant number, since it is smaller than the sum of its proper divisors (221975826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200105454 is a wasteful number, since it uses less digits than its factorization.

200105454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 200105454 is about 14145.8634943223. The cubic root of 200105454 is about 584.9063127052.

Adding to 200105454 its reverse (454501002), we get a palindrome (654606456).

The spelling of 200105454 in words is "two hundred million, one hundred five thousand, four hundred fifty-four".