2135251142 has 8 divisors (see below), whose sum is σ = 3203094000. Its totient is φ = 1067553144.

The previous prime is 2135251117. The next prime is 2135251147. The reversal of 2135251142 is 2411525312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135251147) 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, 15284 + ... + 67112.

It is an arithmetic number, because the mean of its divisors is an integer number (400386750).

Almost surely, 2^2135251142 is an apocalyptic number.

2135251142 is a deficient number, since it is larger than the sum of its proper divisors (1067842858).

2135251142 is a wasteful number, since it uses less digits than its factorization.

2135251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72430.

The product of its digits is 2400, while the sum is 26.

The square root of 2135251142 is about 46208.7777592093. Note that the first 4 decimals coincide. The cubic root of 2135251142 is about 1287.7048189186.

Adding to 2135251142 its reverse (2411525312), we get a palindrome (4546776454).

The spelling of 2135251142 in words is "two billion, one hundred thirty-five million, two hundred fifty-one thousand, one hundred forty-two".