123163490 has 8 divisors (see below), whose sum is σ = 221694300. Its totient is φ = 49265392.

The previous prime is 123163471. The next prime is 123163499. The reversal of 123163490 is 94361321.

It can be written as a sum of positive squares in 2 ways, for example, as 104509729 + 18653761 = 10223^2 + 4319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (123163499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6158165 + ... + 6158184.

Almost surely, 2^123163490 is an apocalyptic number.

123163490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123163490 is a deficient number, since it is larger than the sum of its proper divisors (98530810).

123163490 is a wasteful number, since it uses less digits than its factorization.

123163490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316356.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 123163490 is about 11097.9047572053. The cubic root of 123163490 is about 497.5392290809.

The spelling of 123163490 in words is "one hundred twenty-three million, one hundred sixty-three thousand, four hundred ninety".