29138925 has 12 divisors (see below), whose sum is σ = 48176480. Its totient is φ = 15540720.

The previous prime is 29138891. The next prime is 29138929. The reversal of 29138925 is 52983192.

It is not a de Polignac number, because 29138925 - 2¹² = 29134829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29138929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194185 + ... + 194334.

Almost surely, 2^29138925 is an apocalyptic number.

29138925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29138925 is a deficient number, since it is larger than the sum of its proper divisors (19037555).

29138925 is a wasteful number, since it uses less digits than its factorization.

29138925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388532 (or 388527 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 29138925 is about 5398.0482583986. The cubic root of 29138925 is about 307.7215007958.

The spelling of 29138925 in words is "twenty-nine million, one hundred thirty-eight thousand, nine hundred twenty-five".