1530725429 has 2 divisors, whose sum is σ = 1530725430. Its totient is φ = 1530725428.

The previous prime is 1530725419. The next prime is 1530725431. The reversal of 1530725429 is 9245270351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1382129329 + 148596100 = 37177^2 + 12190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530725429 - 2²⁴ = 1513948213 is a prime.

Together with 1530725431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1530725392 and 1530725401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530725419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765362714 + 765362715.

It is an arithmetic number, because the mean of its divisors is an integer number (765362715).

Almost surely, 2^1530725429 is an apocalyptic number.

It is an amenable number.

1530725429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530725429 is an equidigital number, since it uses as much as digits as its factorization.

1530725429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1530725429 is about 39124.4863097268. The cubic root of 1530725429 is about 1152.4774388702.

The spelling of 1530725429 in words is "one billion, five hundred thirty million, seven hundred twenty-five thousand, four hundred twenty-nine".