2051420141 has 4 divisors (see below), whose sum is σ = 2172091932. Its totient is φ = 1930748352.

The previous prime is 2051420131. The next prime is 2051420143. The reversal of 2051420141 is 1410241502.

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 889292041 + 1162128100 = 29821^2 + 34090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051420141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051420143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60335870 + ... + 60335903.

It is an arithmetic number, because the mean of its divisors is an integer number (543022983).

Almost surely, 2^2051420141 is an apocalyptic number.

It is an amenable number.

2051420141 is a deficient number, since it is larger than the sum of its proper divisors (120671791).

2051420141 is a wasteful number, since it uses less digits than its factorization.

2051420141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120671790.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2051420141 is about 45292.6058093371. The cubic root of 2051420141 is about 1270.6273670980.

Adding to 2051420141 its reverse (1410241502), we get a palindrome (3461661643).

The spelling of 2051420141 in words is "two billion, fifty-one million, four hundred twenty thousand, one hundred forty-one".