4251442135 has 4 divisors (see below), whose sum is σ = 5101730568. Its totient is φ = 3401153704.

The previous prime is 4251442123. The next prime is 4251442159. The reversal of 4251442135 is 5312441524.

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 4251442135 - 2¹³ = 4251433943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4251442097 and 4251442106.

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, 425144209 + ... + 425144218.

It is an arithmetic number, because the mean of its divisors is an integer number (1275432642).

Almost surely, 2^4251442135 is an apocalyptic number.

4251442135 is a deficient number, since it is larger than the sum of its proper divisors (850288433).

4251442135 is an equidigital number, since it uses as much as digits as its factorization.

4251442135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850288432.

The product of its digits is 19200, while the sum is 31.

The square root of 4251442135 is about 65203.0837844346. The cubic root of 4251442135 is about 1619.9890939417.

Adding to 4251442135 its reverse (5312441524), we get a palindrome (9563883659).

The spelling of 4251442135 in words is "four billion, two hundred fifty-one million, four hundred forty-two thousand, one hundred thirty-five".