105453021 has 8 divisors (see below), whose sum is σ = 148004320. Its totient is φ = 66601872.

The previous prime is 105452981. The next prime is 105453113. The reversal of 105453021 is 120354501.

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

It is not a de Polignac number, because 105453021 - 2⁹ = 105452509 is a prime.

It is a super-2 number, since 2×105453021² = 22240679276052882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105453121) 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, 924970 + ... + 925083.

It is an arithmetic number, because the mean of its divisors is an integer number (18500540).

Almost surely, 2^105453021 is an apocalyptic number.

It is an amenable number.

105453021 is a deficient number, since it is larger than the sum of its proper divisors (42551299).

105453021 is a wasteful number, since it uses less digits than its factorization.

105453021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850075.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 105453021 is about 10269.0321355033. The cubic root of 105453021 is about 472.4469053747.

The spelling of 105453021 in words is "one hundred five million, four hundred fifty-three thousand, twenty-one".