109929139 has 2 divisors, whose sum is σ = 109929140. Its totient is φ = 109929138.

The previous prime is 109929073. The next prime is 109929161. The reversal of 109929139 is 931929901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109929139 - 2⁷ = 109929011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109929095 and 109929104.

It is not a weakly prime, because it can be changed into another prime (109929179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54964569 + 54964570.

It is an arithmetic number, because the mean of its divisors is an integer number (54964570).

Almost surely, 2^109929139 is an apocalyptic number.

109929139 is a deficient number, since it is larger than the sum of its proper divisors (1).

109929139 is an equidigital number, since it uses as much as digits as its factorization.

109929139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 109929139 is about 10484.7097718535. The cubic root of 109929139 is about 479.0390773018.

The spelling of 109929139 in words is "one hundred nine million, nine hundred twenty-nine thousand, one hundred thirty-nine".