109939901 has 8 divisors (see below), whose sum is σ = 119246904. Its totient is φ = 100948480.

The previous prime is 109939883. The next prime is 109939903.

109939901 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 3334276 + 106605625 = 1826^2 + 10325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109939901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109939903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78170 + ... + 79563.

It is an arithmetic number, because the mean of its divisors is an integer number (14905863).

Almost surely, 2^109939901 is an apocalyptic number.

It is an amenable number.

109939901 is a deficient number, since it is larger than the sum of its proper divisors (9307003).

109939901 is a wasteful number, since it uses less digits than its factorization.

109939901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157791.

The product of its (nonzero) digits is 19683, while the sum is 41.

The square root of 109939901 is about 10485.2229828459. Note that the first 3 decimals coincide. The cubic root of 109939901 is about 479.0547093425.

The spelling of 109939901 in words is "one hundred nine million, nine hundred thirty-nine thousand, nine hundred one".