2043513451 has 4 divisors (see below), whose sum is σ = 2335443952. Its totient is φ = 1751582952.

The previous prime is 2043513443. The next prime is 2043513457. The reversal of 2043513451 is 1543153402.

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

It is not a de Polignac number, because 2043513451 - 2³ = 2043513443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043513457) 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, 145965240 + ... + 145965253.

It is an arithmetic number, because the mean of its divisors is an integer number (583860988).

Almost surely, 2^2043513451 is an apocalyptic number.

2043513451 is a deficient number, since it is larger than the sum of its proper divisors (291930501).

2043513451 is an equidigital number, since it uses as much as digits as its factorization.

2043513451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291930500.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2043513451 is about 45205.2369864378. The cubic root of 2043513451 is about 1268.9928259987.

Adding to 2043513451 its reverse (1543153402), we get a palindrome (3586666853).

The spelling of 2043513451 in words is "two billion, forty-three million, five hundred thirteen thousand, four hundred fifty-one".