123355090 has 16 divisors (see below), whose sum is σ = 222305472. Its totient is φ = 49282864.

The previous prime is 123355081. The next prime is 123355091. The reversal of 123355090 is 90553321.

It is not an unprimeable number, because it can be changed into a prime (123355091) 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, 1917 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (13894092).

Almost surely, 2^123355090 is an apocalyptic number.

123355090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123355090 is a deficient number, since it is larger than the sum of its proper divisors (98950382).

123355090 is a wasteful number, since it uses less digits than its factorization.

123355090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14801.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 123355090 is about 11106.5336626690. The cubic root of 123355090 is about 497.7970953424.

The spelling of 123355090 in words is "one hundred twenty-three million, three hundred fifty-five thousand, ninety".