3453021245 has 4 divisors (see below), whose sum is σ = 4143625500. Its totient is φ = 2762416992.

The previous prime is 3453021241. The next prime is 3453021251. The reversal of 3453021245 is 5421203543.

It is a happy number.

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 1496374489 + 1956646756 = 38683^2 + 44234^2 .

It is a cyclic number.

It is not a de Polignac number, because 3453021245 - 2² = 3453021241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3453021241) 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, 345302120 + ... + 345302129.

It is an arithmetic number, because the mean of its divisors is an integer number (1035906375).

Almost surely, 2^3453021245 is an apocalyptic number.

It is an amenable number.

3453021245 is a deficient number, since it is larger than the sum of its proper divisors (690604255).

3453021245 is an equidigital number, since it uses as much as digits as its factorization.

3453021245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690604254.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 3453021245 is about 58762.4135396088. The cubic root of 3453021245 is about 1511.4707604653.

Adding to 3453021245 its reverse (5421203543), we get a palindrome (8874224788).

The spelling of 3453021245 in words is "three billion, four hundred fifty-three million, twenty-one thousand, two hundred forty-five".