109429925 has 24 divisors (see below), whose sum is σ = 148532160. Its totient is φ = 79315200.

The previous prime is 109429919. The next prime is 109429927. The reversal of 109429925 is 529924901.

It is a happy number.

It is not a de Polignac number, because 109429925 - 2⁴ = 109429909 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109429927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118616 + ... + 119534.

It is an arithmetic number, because the mean of its divisors is an integer number (6188840).

Almost surely, 2^109429925 is an apocalyptic number.

It is an amenable number.

109429925 is a deficient number, since it is larger than the sum of its proper divisors (39102235).

109429925 is a wasteful number, since it uses less digits than its factorization.

109429925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 109429925 is about 10460.8759193482. The cubic root of 109429925 is about 478.3128339124.

It can be divided in two parts, 109 and 429925, that added together give a palindrome (430034).

The spelling of 109429925 in words is "one hundred nine million, four hundred twenty-nine thousand, nine hundred twenty-five".