123268690 has 16 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 49263280.

The previous prime is 123268643. The next prime is 123268693. The reversal of 123268690 is 96862321.

It is a super-2 number, since 2×123268690² = 30390339868632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123268693) 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, 7695 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (13880160).

Almost surely, 2^123268690 is an apocalyptic number.

123268690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123268690 is a deficient number, since it is larger than the sum of its proper divisors (98813870).

123268690 is a wasteful number, since it uses less digits than its factorization.

123268690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11057.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 123268690 is about 11102.6433789436. The cubic root of 123268690 is about 497.6808463507.

The spelling of 123268690 in words is "one hundred twenty-three million, two hundred sixty-eight thousand, six hundred ninety".