123651232 has 12 divisors (see below), whose sum is σ = 243438426. Its totient is φ = 61825600.

The previous prime is 123651223. The next prime is 123651263. The reversal of 123651232 is 232156321.

It can be written as a sum of positive squares in only one way, i.e., 118287376 + 5363856 = 10876^2 + 2316^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 123651197 and 123651206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932019 + ... + 1932082.

Almost surely, 2^123651232 is an apocalyptic number.

It is an amenable number.

123651232 is a deficient number, since it is larger than the sum of its proper divisors (119787194).

123651232 is an equidigital number, since it uses as much as digits as its factorization.

123651232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864111 (or 3864103 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 123651232 is about 11119.8575530445. The cubic root of 123651232 is about 498.1951354337.

It can be divided in two parts, 1236512 and 32, that added together give a square (1236544 = 1112²).

The spelling of 123651232 in words is "one hundred twenty-three million, six hundred fifty-one thousand, two hundred thirty-two".