109142959 has 2 divisors, whose sum is σ = 109142960. Its totient is φ = 109142958.

The previous prime is 109142927. The next prime is 109142983. The reversal of 109142959 is 959241901.

It is a strong prime.

It is an emirp because it is prime and its reverse (959241901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109142959 - 2⁵ = 109142927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109142989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54571479 + 54571480.

It is an arithmetic number, because the mean of its divisors is an integer number (54571480).

Almost surely, 2^109142959 is an apocalyptic number.

109142959 is a deficient number, since it is larger than the sum of its proper divisors (1).

109142959 is an equidigital number, since it uses as much as digits as its factorization.

109142959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 109142959 is about 10447.1507598962. The cubic root of 109142959 is about 477.8943631341.

The spelling of 109142959 in words is "one hundred nine million, one hundred forty-two thousand, nine hundred fifty-nine".