123628001 has 12 divisors (see below), whose sum is σ = 144531072. Its totient is φ = 103543056.

The previous prime is 123627991. The next prime is 123628007. The reversal of 123628001 is 100826321.

It is not a de Polignac number, because 123628001 - 2⁶ = 123627937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123628007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201371 + ... + 201983.

It is an arithmetic number, because the mean of its divisors is an integer number (12044256).

Almost surely, 2^123628001 is an apocalyptic number.

It is an amenable number.

123628001 is a deficient number, since it is larger than the sum of its proper divisors (20903071).

123628001 is an frugal number, since it uses more digits than its factorization.

123628001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 123628001 is about 11118.8129312441. The cubic root of 123628001 is about 498.1639339760.

The spelling of 123628001 in words is "one hundred twenty-three million, six hundred twenty-eight thousand, one".