123745630 has 16 divisors (see below), whose sum is σ = 222897744. Its totient is φ = 49463680.

The previous prime is 123745627. The next prime is 123745631. The reversal of 123745630 is 36547321.

It is a junction number, because it is equal to n+sod(n) for n = 123745592 and 123745601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123745631) 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, 14694 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (13931109).

Almost surely, 2^123745630 is an apocalyptic number.

123745630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123745630 is a deficient number, since it is larger than the sum of its proper divisors (99152114).

123745630 is a wasteful number, since it uses less digits than its factorization.

123745630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 123745630 is about 11124.1013120162. The cubic root of 123745630 is about 498.3218807995.

The spelling of 123745630 in words is "one hundred twenty-three million, seven hundred forty-five thousand, six hundred thirty".