123413140 has 12 divisors (see below), whose sum is σ = 259167636. Its totient is φ = 49365248.

The previous prime is 123413131. The next prime is 123413141. The reversal of 123413140 is 41314321.

It can be written as a sum of positive squares in 2 ways, for example, as 80353296 + 43059844 = 8964^2 + 6562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123413141) 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 3 ways as a sum of consecutive naturals, for example, 3085309 + ... + 3085348.

It is an arithmetic number, because the mean of its divisors is an integer number (21597303).

Almost surely, 2^123413140 is an apocalyptic number.

123413140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123413140 is an abundant number, since it is smaller than the sum of its proper divisors (135754496).

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

123413140 is a wasteful number, since it uses less digits than its factorization.

123413140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170666 (or 6170664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 123413140 is about 11109.1466819014. The cubic root of 123413140 is about 497.8751696498.

Adding to 123413140 its reverse (41314321), we get a palindrome (164727461).

The spelling of 123413140 in words is "one hundred twenty-three million, four hundred thirteen thousand, one hundred forty".