129780590 has 8 divisors (see below), whose sum is σ = 233605080. Its totient is φ = 51912232.

The previous prime is 129780587. The next prime is 129780593. The reversal of 129780590 is 95087921.

It is an interprime number because it is at equal distance from previous prime (129780587) and next prime (129780593).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129780593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489020 + ... + 6489039.

It is an arithmetic number, because the mean of its divisors is an integer number (29200635).

Almost surely, 2^129780590 is an apocalyptic number.

129780590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129780590 is a deficient number, since it is larger than the sum of its proper divisors (103824490).

129780590 is a wasteful number, since it uses less digits than its factorization.

129780590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978066.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 129780590 is about 11392.1284227312. The cubic root of 129780590 is about 506.2945448788.

The spelling of 129780590 in words is "one hundred twenty-nine million, seven hundred eighty thousand, five hundred ninety".