129530350 has 24 divisors (see below), whose sum is σ = 241410888. Its totient is φ = 51708000.

The previous prime is 129530339. The next prime is 129530371. The reversal of 129530350 is 53035921.

It is a super-2 number, since 2×129530350² = 33556223142245000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25525 + ... + 30175.

It is an arithmetic number, because the mean of its divisors is an integer number (10058787).

Almost surely, 2^129530350 is an apocalyptic number.

129530350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129530350 is a deficient number, since it is larger than the sum of its proper divisors (111880538).

129530350 is a wasteful number, since it uses less digits than its factorization.

129530350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 129530350 is about 11381.1401010619. The cubic root of 129530350 is about 505.9689269404.

The spelling of 129530350 in words is "one hundred twenty-nine million, five hundred thirty thousand, three hundred fifty".