105939290 has 8 divisors (see below), whose sum is σ = 190690740. Its totient is φ = 42375712.

The previous prime is 105939287. The next prime is 105939329. The reversal of 105939290 is 92939501.

It can be written as a sum of positive squares in 2 ways, for example, as 103897249 + 2042041 = 10193^2 + 1429^2 .

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

It is a super-2 number, since 2×105939290² = 22446266331408200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5296955 + ... + 5296974.

Almost surely, 2^105939290 is an apocalyptic number.

105939290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105939290 is a deficient number, since it is larger than the sum of its proper divisors (84751450).

105939290 is a wasteful number, since it uses less digits than its factorization.

105939290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593936.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 105939290 is about 10292.6813804761. The cubic root of 105939290 is about 473.1719804239.

The spelling of 105939290 in words is "one hundred five million, nine hundred thirty-nine thousand, two hundred ninety".