129474538 has 16 divisors (see below), whose sum is σ = 200966400. Its totient is φ = 62496000.

The previous prime is 129474523. The next prime is 129474547. The reversal of 129474538 is 835474921.

It is a junction number, because it is equal to n+sod(n) for n = 129474494 and 129474503.

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, 25513 + ... + 30163.

It is an arithmetic number, because the mean of its divisors is an integer number (12560400).

Almost surely, 2^129474538 is an apocalyptic number.

129474538 is a deficient number, since it is larger than the sum of its proper divisors (71491862).

129474538 is a wasteful number, since it uses less digits than its factorization.

129474538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133.

The product of its digits is 241920, while the sum is 43.

The square root of 129474538 is about 11378.6878856923. The cubic root of 129474538 is about 505.8962459185.

The spelling of 129474538 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, five hundred thirty-eight".