231949629 has 8 divisors (see below), whose sum is σ = 343629120. Its totient is φ = 154633068.

The previous prime is 231949607. The next prime is 231949637. The reversal of 231949629 is 926949132.

It is a happy number.

231949629 is a `hidden beast` number, since 2 + 3 + 19 + 4 + 9 + 629 = 666.

It is not a de Polignac number, because 231949629 - 2¹² = 231945533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231949639) 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, 4295337 + ... + 4295390.

It is an arithmetic number, because the mean of its divisors is an integer number (42953640).

Almost surely, 2^231949629 is an apocalyptic number.

It is an amenable number.

231949629 is a deficient number, since it is larger than the sum of its proper divisors (111679491).

231949629 is an equidigital number, since it uses as much as digits as its factorization.

231949629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590736 (or 8590730 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 231949629 is about 15229.8926128847. The cubic root of 231949629 is about 614.4188918980.

It can be divided in two parts, 23194 and 9629, that added together give a palindrome (32823).

The spelling of 231949629 in words is "two hundred thirty-one million, nine hundred forty-nine thousand, six hundred twenty-nine".