123490134 has 12 divisors (see below), whose sum is σ = 267561996. Its totient is φ = 41163372.

The previous prime is 123490123. The next prime is 123490141. The reversal of 123490134 is 431094321.

It is a junction number, because it is equal to n+sod(n) for n = 123490098 and 123490107.

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, 3430264 + ... + 3430299.

It is an arithmetic number, because the mean of its divisors is an integer number (22296833).

Almost surely, 2^123490134 is an apocalyptic number.

123490134 is an abundant number, since it is smaller than the sum of its proper divisors (144071862).

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

123490134 is a wasteful number, since it uses less digits than its factorization.

123490134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860571 (or 6860568 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 123490134 is about 11112.6114842552. The cubic root of 123490134 is about 497.9786849153.

The spelling of 123490134 in words is "one hundred twenty-three million, four hundred ninety thousand, one hundred thirty-four".