1300125829 has 4 divisors (see below), whose sum is σ = 1322161920. Its totient is φ = 1278089740.

The previous prime is 1300125817. The next prime is 1300125851. The reversal of 1300125829 is 9285210031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9285210031 = 43 ⋅215935117.

It is a cyclic number.

It is not a de Polignac number, because 1300125829 - 2²⁷ = 1165908101 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1300125829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300125889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11017957 + ... + 11018074.

It is an arithmetic number, because the mean of its divisors is an integer number (330540480).

Almost surely, 2^1300125829 is an apocalyptic number.

It is an amenable number.

1300125829 is a deficient number, since it is larger than the sum of its proper divisors (22036091).

1300125829 is an equidigital number, since it uses as much as digits as its factorization.

1300125829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22036090.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1300125829 is about 36057.2576466930. The cubic root of 1300125829 is about 1091.4280944571.

The spelling of 1300125829 in words is "one billion, three hundred million, one hundred twenty-five thousand, eight hundred twenty-nine".