109251129 has 32 divisors (see below), whose sum is σ = 166924800. Its totient is φ = 62963712.

The previous prime is 109251053. The next prime is 109251139. The reversal of 109251129 is 921152901.

It is not a de Polignac number, because 109251129 - 2⁷ = 109251001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109251096 and 109251105.

It is not an unprimeable number, because it can be changed into a prime (109251139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243097 + ... + 243545.

It is an arithmetic number, because the mean of its divisors is an integer number (5216400).

Almost surely, 2^109251129 is an apocalyptic number.

It is an amenable number.

109251129 is a deficient number, since it is larger than the sum of its proper divisors (57673671).

109251129 is a wasteful number, since it uses less digits than its factorization.

109251129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 109251129 is about 10452.3264874381. The cubic root of 109251129 is about 478.0521890578.

The spelling of 109251129 in words is "one hundred nine million, two hundred fifty-one thousand, one hundred twenty-nine".