123473290 has 16 divisors (see below), whose sum is σ = 224931168. Its totient is φ = 48793936.

The previous prime is 123473281. The next prime is 123473293. The reversal of 123473290 is 92374321.

It is not an unprimeable number, because it can be changed into a prime (123473293) by changing a digit.

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, 73552 + ... + 75211.

It is an arithmetic number, because the mean of its divisors is an integer number (14058198).

Almost surely, 2^123473290 is an apocalyptic number.

123473290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123473290 is a deficient number, since it is larger than the sum of its proper divisors (101457878).

123473290 is a wasteful number, since it uses less digits than its factorization.

123473290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148853.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 123473290 is about 11111.8535807488. The cubic root of 123473290 is about 497.9560425279.

The spelling of 123473290 in words is "one hundred twenty-three million, four hundred seventy-three thousand, two hundred ninety".