15020729 has 2 divisors, whose sum is σ = 15020730. Its totient is φ = 15020728.

The previous prime is 15020723. The next prime is 15020737. The reversal of 15020729 is 92702051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 2096704 = 3595^2 + 1448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15020729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15020698 and 15020707.

It is not a weakly prime, because it can be changed into another prime (15020723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510364 + 7510365.

It is an arithmetic number, because the mean of its divisors is an integer number (7510365).

Almost surely, 2^15020729 is an apocalyptic number.

It is an amenable number.

15020729 is a deficient number, since it is larger than the sum of its proper divisors (1).

15020729 is an equidigital number, since it uses as much as digits as its factorization.

15020729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 15020729 is about 3875.6585246897. The cubic root of 15020729 is about 246.7347598309.

The spelling of 15020729 in words is "fifteen million, twenty thousand, seven hundred twenty-nine".