2192412521 has 4 divisors (see below), whose sum is σ = 2361059652. Its totient is φ = 2023765392.

The previous prime is 2192412517. The next prime is 2192412533. The reversal of 2192412521 is 1252142912.

2192412521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260370496 + 1932042025 = 16136^2 + 43955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2192412521 - 2² = 2192412517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2192412571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84323546 + ... + 84323571.

It is an arithmetic number, because the mean of its divisors is an integer number (590264913).

Almost surely, 2^2192412521 is an apocalyptic number.

It is an amenable number.

2192412521 is a deficient number, since it is larger than the sum of its proper divisors (168647131).

2192412521 is a wasteful number, since it uses less digits than its factorization.

2192412521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168647130.

The product of its digits is 2880, while the sum is 29.

The square root of 2192412521 is about 46823.2049415672. The cubic root of 2192412521 is about 1299.0945412832.

The spelling of 2192412521 in words is "two billion, one hundred ninety-two million, four hundred twelve thousand, five hundred twenty-one".