105436978 has 8 divisors (see below), whose sum is σ = 158209920. Its totient is φ = 52700340.

The previous prime is 105436973. The next prime is 105436979. The reversal of 105436978 is 879634501.

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

It is a super-2 number, since 2×105436978² = 22233912659544968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105436973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (19776240).

Almost surely, 2^105436978 is an apocalyptic number.

105436978 is a deficient number, since it is larger than the sum of its proper divisors (52772942).

105436978 is a wasteful number, since it uses less digits than its factorization.

105436978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18152.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 105436978 is about 10268.2509708324. The cubic root of 105436978 is about 472.4229457320.

The spelling of 105436978 in words is "one hundred five million, four hundred thirty-six thousand, nine hundred seventy-eight".