429731231 has 2 divisors, whose sum is σ = 429731232. Its totient is φ = 429731230.

The previous prime is 429731213. The next prime is 429731299. The reversal of 429731231 is 132137924.

Together with previous prime (429731213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 429731231 - 2⁶ = 429731167 is a prime.

It is a super-2 number, since 2×429731231² = 369337861793550722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429731131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214865615 + 214865616.

It is an arithmetic number, because the mean of its divisors is an integer number (214865616).

Almost surely, 2^429731231 is an apocalyptic number.

429731231 is a deficient number, since it is larger than the sum of its proper divisors (1).

429731231 is an equidigital number, since it uses as much as digits as its factorization.

429731231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 429731231 is about 20729.9597442928. The cubic root of 429731231 is about 754.6269408212.

The spelling of 429731231 in words is "four hundred twenty-nine million, seven hundred thirty-one thousand, two hundred thirty-one".