105154212 has 24 divisors (see below), whose sum is σ = 248119200. Its totient is φ = 34657216.

The previous prime is 105154199. The next prime is 105154223. The reversal of 105154212 is 212451501.

It is a super-2 number, since 2×105154212² = 22114816602681888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48162 + ... + 50297.

It is an arithmetic number, because the mean of its divisors is an integer number (10338300).

Almost surely, 2^105154212 is an apocalyptic number.

105154212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105154212 is an abundant number, since it is smaller than the sum of its proper divisors (142964988).

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

105154212 is a wasteful number, since it uses less digits than its factorization.

105154212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98555 (or 98553 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 105154212 is about 10254.4727802067. The cubic root of 105154212 is about 472.0002453796. Note that the first 3 decimals are identical.

The spelling of 105154212 in words is "one hundred five million, one hundred fifty-four thousand, two hundred twelve".