2051251135 has 4 divisors (see below), whose sum is σ = 2461501368. Its totient is φ = 1641000904.

The previous prime is 2051251123. The next prime is 2051251141. The reversal of 2051251135 is 5311521502.

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

It is a cyclic number.

It is not a de Polignac number, because 2051251135 - 2¹³ = 2051242943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205125109 + ... + 205125118.

It is an arithmetic number, because the mean of its divisors is an integer number (615375342).

Almost surely, 2^2051251135 is an apocalyptic number.

2051251135 is a deficient number, since it is larger than the sum of its proper divisors (410250233).

2051251135 is an equidigital number, since it uses as much as digits as its factorization.

2051251135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410250232.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2051251135 is about 45290.7400579854. The cubic root of 2051251135 is about 1270.5924726458.

Adding to 2051251135 its reverse (5311521502), we get a palindrome (7362772637).

The spelling of 2051251135 in words is "two billion, fifty-one million, two hundred fifty-one thousand, one hundred thirty-five".