107242991 has 4 divisors (see below), whose sum is σ = 108087552. Its totient is φ = 106398432.

The previous prime is 107242969. The next prime is 107243023. The reversal of 107242991 is 199242701.

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 107242991 - 2¹⁴ = 107226607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107242901) 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, 422090 + ... + 422343.

It is an arithmetic number, because the mean of its divisors is an integer number (27021888).

Almost surely, 2^107242991 is an apocalyptic number.

107242991 is a deficient number, since it is larger than the sum of its proper divisors (844561).

107242991 is an equidigital number, since it uses as much as digits as its factorization.

107242991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844560.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 107242991 is about 10355.8191853663. The cubic root of 107242991 is about 475.1050419585.

The spelling of 107242991 in words is "one hundred seven million, two hundred forty-two thousand, nine hundred ninety-one".