29531109 has 8 divisors (see below), whose sum is σ = 39400480. Its totient is φ = 19674576.

The previous prime is 29531071. The next prime is 29531113. The reversal of 29531109 is 90113592.

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

It is not a de Polignac number, because 29531109 - 2¹³ = 29522917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29531129) 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, 5679 + ... + 9555.

It is an arithmetic number, because the mean of its divisors is an integer number (4925060).

Almost surely, 2^29531109 is an apocalyptic number.

It is an amenable number.

29531109 is a deficient number, since it is larger than the sum of its proper divisors (9869371).

29531109 is a wasteful number, since it uses less digits than its factorization.

29531109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 29531109 is about 5434.2533065730. The cubic root of 29531109 is about 309.0959055473.

The spelling of 29531109 in words is "twenty-nine million, five hundred thirty-one thousand, one hundred nine".