2105454 has 16 divisors (see below), whose sum is σ = 4534992. Its totient is φ = 647808.

The previous prime is 2105449. The next prime is 2105483. The reversal of 2105454 is 4545012.

It is a super-2 number, since 2×2105454² = 8865873092232, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

2105454 is a modest number, since divided by 5454 gives 210 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2105454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13419 + ... + 13574.

It is an arithmetic number, because the mean of its divisors is an integer number (283437).

2^2105454 is an apocalyptic number.

2105454 is an abundant number, since it is smaller than the sum of its proper divisors (2429538).

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

2105454 is a wasteful number, since it uses less digits than its factorization.

2105454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27011.

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

The square root of 2105454 is about 1451.0182631518. The cubic root of 2105454 is about 128.1686822303.

The spelling of 2105454 in words is "two million, one hundred five thousand, four hundred fifty-four".