106988231 has 4 divisors (see below), whose sum is σ = 122272272. Its totient is φ = 91704192.

The previous prime is 106988227. The next prime is 106988239. The reversal of 106988231 is 132889601.

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

It is a cyclic number.

It is not a de Polignac number, because 106988231 - 2² = 106988227 is a prime.

It is a super-2 number, since 2×106988231² = 22892963145018722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106988239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7642010 + ... + 7642023.

It is an arithmetic number, because the mean of its divisors is an integer number (30568068).

Almost surely, 2^106988231 is an apocalyptic number.

106988231 is a deficient number, since it is larger than the sum of its proper divisors (15284041).

106988231 is an equidigital number, since it uses as much as digits as its factorization.

106988231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15284040.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 106988231 is about 10343.5115410580. The cubic root of 106988231 is about 474.7285333420.

The spelling of 106988231 in words is "one hundred six million, nine hundred eighty-eight thousand, two hundred thirty-one".