123554406 has 16 divisors (see below), whose sum is σ = 255080448. Its totient is φ = 39856200.

The previous prime is 123554393. The next prime is 123554423. The reversal of 123554406 is 604455321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331950 + ... + 332321.

It is an arithmetic number, because the mean of its divisors is an integer number (15942528).

Almost surely, 2^123554406 is an apocalyptic number.

123554406 is an abundant number, since it is smaller than the sum of its proper divisors (131526042).

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

123554406 is a wasteful number, since it uses less digits than its factorization.

123554406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664307.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 123554406 is about 11115.5029575814. The cubic root of 123554406 is about 498.0650630303.

It can be divided in two parts, 12355 and 4406, that added together give a palindrome (16761).

The spelling of 123554406 in words is "one hundred twenty-three million, five hundred fifty-four thousand, four hundred six".