106142986 has 4 divisors (see below), whose sum is σ = 159214482. Its totient is φ = 53071492.

The previous prime is 106142983. The next prime is 106143013. The reversal of 106142986 is 689241601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 89586225 + 16556761 = 9465^2 + 4069^2 .

It is a super-2 number, since 2×106142986² = 22532666953992392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106142983) 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 as a sum of consecutive naturals, namely, 26535745 + ... + 26535748.

Almost surely, 2^106142986 is an apocalyptic number.

106142986 is a deficient number, since it is larger than the sum of its proper divisors (53071496).

106142986 is an equidigital number, since it uses as much as digits as its factorization.

106142986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53071495.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 106142986 is about 10302.5718148431. The cubic root of 106142986 is about 473.4750519020.

The spelling of 106142986 in words is "one hundred six million, one hundred forty-two thousand, nine hundred eighty-six".