12403134 has 12 divisors (see below), whose sum is σ = 26873496. Its totient is φ = 4134372.

The previous prime is 12403123. The next prime is 12403147. The reversal of 12403134 is 43130421.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 689063 = 12403134 / (1 + 2 + 4 + 0 + 3 + 1 + 3 + 4).

It is a congruent number.

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, 344514 + ... + 344549.

It is an arithmetic number, because the mean of its divisors is an integer number (2239458).

Almost surely, 2^12403134 is an apocalyptic number.

12403134 is an abundant number, since it is smaller than the sum of its proper divisors (14470362).

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

12403134 is a wasteful number, since it uses less digits than its factorization.

12403134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689071 (or 689068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12403134 is about 3521.8083423151. The cubic root of 12403134 is about 231.4784036006.

Adding to 12403134 its reverse (43130421), we get a palindrome (55533555).

The spelling of 12403134 in words is "twelve million, four hundred three thousand, one hundred thirty-four".