1520000429 has 2 divisors, whose sum is σ = 1520000430. Its totient is φ = 1520000428.

The previous prime is 1520000411. The next prime is 1520000459. The reversal of 1520000429 is 9240000251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1380122500 + 139877929 = 37150^2 + 11827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1520000429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1520000459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760000214 + 760000215.

It is an arithmetic number, because the mean of its divisors is an integer number (760000215).

Almost surely, 2^1520000429 is an apocalyptic number.

It is an amenable number.

1520000429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520000429 is an equidigital number, since it uses as much as digits as its factorization.

1520000429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1520000429 is about 38987.1828810444. The cubic root of 1520000429 is about 1149.7795239590.

The spelling of 1520000429 in words is "one billion, five hundred twenty million, four hundred twenty-nine", and thus it is an aban number.