129572803 has 4 divisors (see below), whose sum is σ = 132586168. Its totient is φ = 126559440.

The previous prime is 129572797. The next prime is 129572873. The reversal of 129572803 is 308275921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308275921 = 373 ⋅826477.

It is a cyclic number.

It is not a de Polignac number, because 129572803 - 2⁵ = 129572771 is a prime.

It is a super-2 number, since 2×129572803² = 33578222554553618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129572873) 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, 1506618 + ... + 1506703.

It is an arithmetic number, because the mean of its divisors is an integer number (33146542).

Almost surely, 2^129572803 is an apocalyptic number.

129572803 is a deficient number, since it is larger than the sum of its proper divisors (3013365).

129572803 is an equidigital number, since it uses as much as digits as its factorization.

129572803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013364.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 129572803 is about 11383.0050074662. The cubic root of 129572803 is about 506.0241972629.

The spelling of 129572803 in words is "one hundred twenty-nine million, five hundred seventy-two thousand, eight hundred three".