29126231 has 2 divisors, whose sum is σ = 29126232. Its totient is φ = 29126230.

The previous prime is 29126191. The next prime is 29126233. The reversal of 29126231 is 13262192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29126231 - 2²² = 24931927 is a prime.

It is a super-2 number, since 2×29126231² = 1696674664530722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 29126233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29126231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29126233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14563115 + 14563116.

It is an arithmetic number, because the mean of its divisors is an integer number (14563116).

Almost surely, 2^29126231 is an apocalyptic number.

29126231 is a deficient number, since it is larger than the sum of its proper divisors (1).

29126231 is an equidigital number, since it uses as much as digits as its factorization.

29126231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 29126231 is about 5396.8723349733. The cubic root of 29126231 is about 307.6768093267.

The spelling of 29126231 in words is "twenty-nine million, one hundred twenty-six thousand, two hundred thirty-one".