107980981 has 4 divisors (see below), whose sum is σ = 110018412. Its totient is φ = 105943552.

The previous prime is 107980979. The next prime is 107980987. The reversal of 107980981 is 189089701.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77000625 + 30980356 = 8775^2 + 5566^2 .

It is a cyclic number.

It is not a de Polignac number, because 107980981 - 2¹ = 107980979 is a prime.

It is a super-2 number, since 2×107980981² = 23319784515444722, 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 (107980987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018636 + ... + 1018741.

It is an arithmetic number, because the mean of its divisors is an integer number (27504603).

Almost surely, 2^107980981 is an apocalyptic number.

It is an amenable number.

107980981 is a deficient number, since it is larger than the sum of its proper divisors (2037431).

107980981 is an equidigital number, since it uses as much as digits as its factorization.

107980981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037430.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 107980981 is about 10391.3897530600. The cubic root of 107980981 is about 476.1923595229.

The spelling of 107980981 in words is "one hundred seven million, nine hundred eighty thousand, nine hundred eighty-one".