123297590 has 16 divisors (see below), whose sum is σ = 239007888. Its totient is φ = 45525216.

The previous prime is 123297553. The next prime is 123297599. The reversal of 123297590 is 95792321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123297599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474092 + ... + 474351.

It is an arithmetic number, because the mean of its divisors is an integer number (14937993).

Almost surely, 2^123297590 is an apocalyptic number.

123297590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123297590 is a deficient number, since it is larger than the sum of its proper divisors (115710298).

123297590 is a wasteful number, since it uses less digits than its factorization.

123297590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948463.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 123297590 is about 11103.9447945314. The cubic root of 123297590 is about 497.7197366063.

The spelling of 123297590 in words is "one hundred twenty-three million, two hundred ninety-seven thousand, five hundred ninety".