123554412 has 18 divisors (see below), whose sum is σ = 312318188. Its totient is φ = 41184792.

The previous prime is 123554393. The next prime is 123554423. The reversal of 123554412 is 214455321.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1715998 + ... + 1716069.

Almost surely, 2^123554412 is an apocalyptic number.

123554412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123554412 is an abundant number, since it is smaller than the sum of its proper divisors (188763776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123554412 is a wasteful number, since it uses less digits than its factorization.

123554412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432077 (or 3432072 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 123554412 is about 11115.5032274747. The cubic root of 123554412 is about 498.0650710926.

Subtracting 123554412 from its reverse (214455321), we obtain a palindrome (90900909).

The spelling of 123554412 in words is "one hundred twenty-three million, five hundred fifty-four thousand, four hundred twelve".