123897238 has 16 divisors (see below), whose sum is σ = 191164320. Its totient is φ = 60225048.

The previous prime is 123897229. The next prime is 123897253. The reversal of 123897238 is 832798321.

It is a junction number, because it is equal to n+sod(n) for n = 123897194 and 123897203.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 100695 + ... + 101917.

It is an arithmetic number, because the mean of its divisors is an integer number (11947770).

Almost surely, 2^123897238 is an apocalyptic number.

123897238 is a deficient number, since it is larger than the sum of its proper divisors (67267082).

123897238 is an frugal number, since it uses more digits than its factorization.

123897238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1262 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 123897238 is about 11130.9136192857. The cubic root of 123897238 is about 498.5253054950.

The spelling of 123897238 in words is "one hundred twenty-three million, eight hundred ninety-seven thousand, two hundred thirty-eight".