2134421245 has 12 divisors (see below), whose sum is σ = 2815320060. Its totient is φ = 1552305920.

The previous prime is 2134421209. The next prime is 2134421249. The reversal of 2134421245 is 5421244312.

It can be written as a sum of positive squares in 2 ways, for example, as 831860964 + 1302560281 = 28842^2 + 36091^2 .

It is not a de Polignac number, because 2134421245 - 2⁹ = 2134420733 is a prime.

It is a super-2 number, since 2×2134421245² = 9111508102214700050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134421249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1763380 + ... + 1764589.

It is an arithmetic number, because the mean of its divisors is an integer number (234610005).

Almost surely, 2^2134421245 is an apocalyptic number.

It is an amenable number.

2134421245 is a deficient number, since it is larger than the sum of its proper divisors (680898815).

2134421245 is a wasteful number, since it uses less digits than its factorization.

2134421245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527996 (or 3527985 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 2134421245 is about 46199.7970233636. The cubic root of 2134421245 is about 1287.5379687800.

Adding to 2134421245 its reverse (5421244312), we get a palindrome (7555665557).

The spelling of 2134421245 in words is "two billion, one hundred thirty-four million, four hundred twenty-one thousand, two hundred forty-five".