123648734 has 8 divisors (see below), whose sum is σ = 202334328. Its totient is φ = 56203960.

The previous prime is 123648727. The next prime is 123648737. The reversal of 123648734 is 437846321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123648737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810177 + ... + 2810220.

It is an arithmetic number, because the mean of its divisors is an integer number (25291791).

Almost surely, 2^123648734 is an apocalyptic number.

123648734 is a deficient number, since it is larger than the sum of its proper divisors (78685594).

123648734 is a wasteful number, since it uses less digits than its factorization.

123648734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620410.

The product of its digits is 96768, while the sum is 38.

The square root of 123648734 is about 11119.7452308945. The cubic root of 123648734 is about 498.1917805680.

The spelling of 123648734 in words is "one hundred twenty-three million, six hundred forty-eight thousand, seven hundred thirty-four".