106905290 has 8 divisors (see below), whose sum is σ = 192429540. Its totient is φ = 42762112.

The previous prime is 106905283. The next prime is 106905313. The reversal of 106905290 is 92509601.

It can be written as a sum of positive squares in 2 ways, for example, as 98267569 + 8637721 = 9913^2 + 2939^2 .

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

It is a super-2 number, since 2×106905290² = 22857482059968200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345255 + ... + 5345274.

Almost surely, 2^106905290 is an apocalyptic number.

106905290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106905290 is a deficient number, since it is larger than the sum of its proper divisors (85524250).

106905290 is a wasteful number, since it uses less digits than its factorization.

106905290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10690536.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 106905290 is about 10339.5014386575. The cubic root of 106905290 is about 474.6058262675.

The spelling of 106905290 in words is "one hundred six million, nine hundred five thousand, two hundred ninety".