129937226 has 16 divisors (see below), whose sum is σ = 204395400. Its totient is φ = 61867008.

The previous prime is 129937211. The next prime is 129937253. The reversal of 129937226 is 622739921.

It can be written as a sum of positive squares in 4 ways, for example, as 129937201 + 25 = 11399^2 + 5^2 .

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, 11111 + ... + 19578.

Almost surely, 2^129937226 is an apocalyptic number.

129937226 is a deficient number, since it is larger than the sum of its proper divisors (74458174).

129937226 is a wasteful number, since it uses less digits than its factorization.

129937226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30793.

The product of its digits is 81648, while the sum is 41.

The square root of 129937226 is about 11399.0010965874. The cubic root of 129937226 is about 506.4981502330.

The spelling of 129937226 in words is "one hundred twenty-nine million, nine hundred thirty-seven thousand, two hundred twenty-six".