105212826 has 24 divisors (see below), whose sum is σ = 228159360. Its totient is φ = 35040456.

The previous prime is 105212803. The next prime is 105212827. The reversal of 105212826 is 628212501.

It is a happy number.

It is a super-2 number, since 2×105212826² = 22139477509812552, 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 105212826.

It is not an unprimeable number, because it can be changed into a prime (105212827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30001 + ... + 33323.

It is an arithmetic number, because the mean of its divisors is an integer number (9506640).

Almost surely, 2^105212826 is an apocalyptic number.

105212826 is an abundant number, since it is smaller than the sum of its proper divisors (122946534).

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

105212826 is a wasteful number, since it uses less digits than its factorization.

105212826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090 (or 5087 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 105212826 is about 10257.3303544343. The cubic root of 105212826 is about 472.0879282948.

The spelling of 105212826 in words is "one hundred five million, two hundred twelve thousand, eight hundred twenty-six".