1538611652 has 12 divisors (see below), whose sum is σ = 2698651536. Its totient is φ = 767568360.

The previous prime is 1538611649. The next prime is 1538611661. The reversal of 1538611652 is 2561168351.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432374 + ... + 435917.

It is an arithmetic number, because the mean of its divisors is an integer number (224887628).

Almost surely, 2^1538611652 is an apocalyptic number.

It is an amenable number.

1538611652 is a deficient number, since it is larger than the sum of its proper divisors (1160039884).

1538611652 is a wasteful number, since it uses less digits than its factorization.

1538611652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868738 (or 868736 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 1538611652 is about 39225.1405606149. The cubic root of 1538611652 is about 1154.4532189512.

The spelling of 1538611652 in words is "one billion, five hundred thirty-eight million, six hundred eleven thousand, six hundred fifty-two".