105054215 has 16 divisors (see below), whose sum is σ = 146795328. Its totient is φ = 70676736.

The previous prime is 105054197. The next prime is 105054221. The reversal of 105054215 is 512450501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105054215 - 2⁶ = 105054151 is a prime.

It is a super-2 number, since 2×105054215² = 22072776178532450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26462 + ... + 30171.

It is an arithmetic number, because the mean of its divisors is an integer number (9174708).

Almost surely, 2^105054215 is an apocalyptic number.

105054215 is a deficient number, since it is larger than the sum of its proper divisors (41741113).

105054215 is an equidigital number, since it uses as much as digits as its factorization.

105054215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56698.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 105054215 is about 10249.5958456907. The cubic root of 105054215 is about 471.8505808161.

The spelling of 105054215 in words is "one hundred five million, fifty-four thousand, two hundred fifteen".