106981946 has 4 divisors (see below), whose sum is σ = 160472922. Its totient is φ = 53490972.

The previous prime is 106981943. The next prime is 106981949. The reversal of 106981946 is 649189601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649189601 = 2377 ⋅273113.

It is an interprime number because it is at equal distance from previous prime (106981943) and next prime (106981949).

It can be written as a sum of positive squares in only one way, i.e., 106894921 + 87025 = 10339^2 + 295^2 .

It is a super-2 number, since 2×106981946² = 22890273539893832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106981897 and 106981906.

It is not an unprimeable number, because it can be changed into a prime (106981943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26745485 + ... + 26745488.

Almost surely, 2^106981946 is an apocalyptic number.

106981946 is a deficient number, since it is larger than the sum of its proper divisors (53490976).

106981946 is an equidigital number, since it uses as much as digits as its factorization.

106981946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53490975.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 106981946 is about 10343.2077229455. The cubic root of 106981946 is about 474.7192372190.

The spelling of 106981946 in words is "one hundred six million, nine hundred eighty-one thousand, nine hundred forty-six".