105947138 has 16 divisors (see below), whose sum is σ = 174412224. Its totient is φ = 47867760.

The previous prime is 105947117. The next prime is 105947143. The reversal of 105947138 is 831749501.

It is a super-2 number, since 2×105947138² = 22449592100782088, which contains 22 as substring.

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, 10745 + ... + 18092.

It is an arithmetic number, because the mean of its divisors is an integer number (10900764).

Almost surely, 2^105947138 is an apocalyptic number.

105947138 is a deficient number, since it is larger than the sum of its proper divisors (68465086).

105947138 is a wasteful number, since it uses less digits than its factorization.

105947138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29017.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 105947138 is about 10293.0626151792. The cubic root of 105947138 is about 473.1836643547.

The spelling of 105947138 in words is "one hundred five million, nine hundred forty-seven thousand, one hundred thirty-eight".