231429963 has 4 divisors (see below), whose sum is σ = 308573288. Its totient is φ = 154286640.

The previous prime is 231429949. The next prime is 231429997. The reversal of 231429963 is 369924132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231429963 - 2¹² = 231425867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231429923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38571658 + ... + 38571663.

It is an arithmetic number, because the mean of its divisors is an integer number (77143322).

Almost surely, 2^231429963 is an apocalyptic number.

231429963 is a deficient number, since it is larger than the sum of its proper divisors (77143325).

231429963 is an equidigital number, since it uses as much as digits as its factorization.

231429963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77143324.

The product of its digits is 69984, while the sum is 39.

The square root of 231429963 is about 15212.8223219756. The cubic root of 231429963 is about 613.9596954237.

The spelling of 231429963 in words is "two hundred thirty-one million, four hundred twenty-nine thousand, nine hundred sixty-three".