1642113529 has 15 divisors (see below), whose sum is σ = 1918004357. Its totient is φ = 1405823916.

The previous prime is 1642113527. The next prime is 1642113533. The reversal of 1642113529 is 9253112461.

The square root of 1642113529 is 40523.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1642113529 - 2¹ = 1642113527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1642113494 and 1642113503.

It is not an unprimeable number, because it can be changed into a prime (1642113527) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1985214 + ... + 1986040.

Almost surely, 2^1642113529 is an apocalyptic number.

1642113529 is the 40523-rd square number.

1642113529 is the 20262-nd centered octagonal number.

It is an amenable number.

1642113529 is a deficient number, since it is larger than the sum of its proper divisors (275890828).

1642113529 is an frugal number, since it uses more digits than its factorization.

With its successor (1642113530) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1682).

1642113529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 834 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The cubic root of 1642113529 is about 1179.7800818256.

The spelling of 1642113529 in words is "one billion, six hundred forty-two million, one hundred thirteen thousand, five hundred twenty-nine".