123631472 has 20 divisors (see below), whose sum is σ = 247263936. Its totient is φ = 59821440.

The previous prime is 123631427. The next prime is 123631481. The reversal of 123631472 is 274136321.

It is a happy number.

123631472 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 124133 + ... + 125124.

Almost surely, 2^123631472 is an apocalyptic number.

It is an amenable number.

123631472 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123631472 is a wasteful number, since it uses less digits than its factorization.

123631472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249296 (or 249290 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 123631472 is about 11118.9690169548. The cubic root of 123631472 is about 498.1685961097.

Adding to 123631472 its reverse (274136321), we get a palindrome (397767793).

The spelling of 123631472 in words is "one hundred twenty-three million, six hundred thirty-one thousand, four hundred seventy-two".