4251215141 has 4 divisors (see below), whose sum is σ = 4264797612. Its totient is φ = 4237632672.

The previous prime is 4251215123. The next prime is 4251215147. The reversal of 4251215141 is 1415121524.

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 1538992900 + 2712222241 = 39230^2 + 52079^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251215141 - 2⁶ = 4251215077 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 4251215141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251215147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6790766 + ... + 6791391.

It is an arithmetic number, because the mean of its divisors is an integer number (1066199403).

Almost surely, 2^4251215141 is an apocalyptic number.

It is an amenable number.

4251215141 is a deficient number, since it is larger than the sum of its proper divisors (13582471).

4251215141 is a wasteful number, since it uses less digits than its factorization.

4251215141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582470.

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

The square root of 4251215141 is about 65201.3430919947. The cubic root of 4251215141 is about 1619.9602618155.

Adding to 4251215141 its reverse (1415121524), we get a palindrome (5666336665).

The spelling of 4251215141 in words is "four billion, two hundred fifty-one million, two hundred fifteen thousand, one hundred forty-one".