2051400513 has 4 divisors (see below), whose sum is σ = 2735200688. Its totient is φ = 1367600340.

The previous prime is 2051400511. The next prime is 2051400539. The reversal of 2051400513 is 3150041502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2051400513 - 2¹ = 2051400511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2051400513.

It is not an unprimeable number, because it can be changed into a prime (2051400511) 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, 341900083 + ... + 341900088.

It is an arithmetic number, because the mean of its divisors is an integer number (683800172).

Almost surely, 2^2051400513 is an apocalyptic number.

It is an amenable number.

2051400513 is a deficient number, since it is larger than the sum of its proper divisors (683800175).

2051400513 is an equidigital number, since it uses as much as digits as its factorization.

2051400513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683800174.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2051400513 is about 45292.3891288592. The cubic root of 2051400513 is about 1270.6233146284.

The spelling of 2051400513 in words is "two billion, fifty-one million, four hundred thousand, five hundred thirteen".