1522130402 has 16 divisors (see below), whose sum is σ = 2484178872. Its totient is φ = 695278080.

The previous prime is 1522130387. The next prime is 1522130437. The reversal of 1522130402 is 2040312251.

It can be written as a sum of positive squares in 4 ways, for example, as 1397339161 + 124791241 = 37381^2 + 11171^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299249 + ... + 304292.

Almost surely, 2^1522130402 is an apocalyptic number.

1522130402 is a deficient number, since it is larger than the sum of its proper divisors (962048470).

1522130402 is a wasteful number, since it uses less digits than its factorization.

1522130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603653.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1522130402 is about 39014.4896416703. The cubic root of 1522130402 is about 1150.3163344009.

Adding to 1522130402 its reverse (2040312251), we get a palindrome (3562442653).

The spelling of 1522130402 in words is "one billion, five hundred twenty-two million, one hundred thirty thousand, four hundred two".