126003423 has 32 divisors (see below), whose sum is σ = 207470592. Its totient is φ = 66240000.

The previous prime is 126003413. The next prime is 126003443. The reversal of 126003423 is 324300621.

It is a happy number.

It is not a de Polignac number, because 126003423 - 2⁵ = 126003391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 126003423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126003403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108898 + ... + 110048.

It is an arithmetic number, because the mean of its divisors is an integer number (6483456).

Almost surely, 2^126003423 is an apocalyptic number.

126003423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126003423 is a deficient number, since it is larger than the sum of its proper divisors (81467169).

126003423 is a wasteful number, since it uses less digits than its factorization.

126003423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 126003423 is about 11225.1246318248. The cubic root of 126003423 is about 501.3343332751.

The spelling of 126003423 in words is "one hundred twenty-six million, three thousand, four hundred twenty-three".