4251421151 has 2 divisors, whose sum is σ = 4251421152. Its totient is φ = 4251421150.

The previous prime is 4251421123. The next prime is 4251421193. The reversal of 4251421151 is 1511241524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4251421151 - 2¹⁰ = 4251420127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4251421151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4251421751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125710575 + 2125710576.

It is an arithmetic number, because the mean of its divisors is an integer number (2125710576).

Almost surely, 2^4251421151 is an apocalyptic number.

4251421151 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251421151 is an equidigital number, since it uses as much as digits as its factorization.

4251421151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1600, while the sum is 26.

The square root of 4251421151 is about 65202.9228716014. The cubic root of 4251421151 is about 1619.9864286573.

Adding to 4251421151 its reverse (1511241524), we get a palindrome (5762662675).

The spelling of 4251421151 in words is "four billion, two hundred fifty-one million, four hundred twenty-one thousand, one hundred fifty-one".