109081958 has 4 divisors (see below), whose sum is σ = 163622940. Its totient is φ = 54540978.

The previous prime is 109081949. The next prime is 109081961. The reversal of 109081958 is 859180901.

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

It is a super-2 number, since 2×109081958² = 23797747122227528, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27270488 + ... + 27270491.

It is an arithmetic number, because the mean of its divisors is an integer number (40905735).

Almost surely, 2^109081958 is an apocalyptic number.

109081958 is a deficient number, since it is larger than the sum of its proper divisors (54540982).

109081958 is an equidigital number, since it uses as much as digits as its factorization.

109081958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54540981.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 109081958 is about 10444.2308476977. The cubic root of 109081958 is about 477.8053133620.

The spelling of 109081958 in words is "one hundred nine million, eighty-one thousand, nine hundred fifty-eight".