29142191 has 6 divisors (see below), whose sum is σ = 31556520. Its totient is φ = 26900328.

The previous prime is 29142167. The next prime is 29142193. The reversal of 29142191 is 19124192.

It is not a de Polignac number, because 29142191 - 2²² = 24947887 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 (29142193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86051 + ... + 86388.

It is an arithmetic number, because the mean of its divisors is an integer number (5259420).

Almost surely, 2^29142191 is an apocalyptic number.

29142191 is a deficient number, since it is larger than the sum of its proper divisors (2414329).

29142191 is a wasteful number, since it uses less digits than its factorization.

29142191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172465 (or 172452 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 29142191 is about 5398.3507666694. The cubic root of 29142191 is about 307.7329972263.

The spelling of 29142191 in words is "twenty-nine million, one hundred forty-two thousand, one hundred ninety-one".