1529447225 has 12 divisors (see below), whose sum is σ = 1919366736. Its totient is φ = 1208814480.

The previous prime is 1529447219. The next prime is 1529447233. The reversal of 1529447225 is 5227449251.

It is not a de Polignac number, because 1529447225 - 2¹⁰ = 1529446201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366467 + ... + 370616.

It is an arithmetic number, because the mean of its divisors is an integer number (159947228).

Almost surely, 2^1529447225 is an apocalyptic number.

It is an amenable number.

1529447225 is a deficient number, since it is larger than the sum of its proper divisors (389919511).

1529447225 is an equidigital number, since it uses as much as digits as its factorization.

1529447225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737176 (or 737171 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 1529447225 is about 39108.1478083532. The cubic root of 1529447225 is about 1152.1565645398.

The spelling of 1529447225 in words is "one billion, five hundred twenty-nine million, four hundred forty-seven thousand, two hundred twenty-five".