109221739 has 6 divisors (see below), whose sum is σ = 120053780. Its totient is φ = 99292380.

The previous prime is 109221737. The next prime is 109221811. The reversal of 109221739 is 937122901.

It is a happy number.

It is not a de Polignac number, because 109221739 - 2¹ = 109221737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109221737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451209 + ... + 451450.

Almost surely, 2^109221739 is an apocalyptic number.

109221739 is a deficient number, since it is larger than the sum of its proper divisors (10832041).

109221739 is an equidigital number, since it uses as much as digits as its factorization.

109221739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902681 (or 902670 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 109221739 is about 10450.9204857754. The cubic root of 109221739 is about 478.0093177575.

The spelling of 109221739 in words is "one hundred nine million, two hundred twenty-one thousand, seven hundred thirty-nine".