2135522042 has 8 divisors (see below), whose sum is σ = 3203612532. Its totient is φ = 1067651200.

The previous prime is 2135522041. The next prime is 2135522047. The reversal of 2135522042 is 2402255312.

It can be written as a sum of positive squares in 2 ways, for example, as 2004442441 + 131079601 = 44771^2 + 11449^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2135522041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27959 + ... + 71082.

Almost surely, 2^2135522042 is an apocalyptic number.

2135522042 is a deficient number, since it is larger than the sum of its proper divisors (1068090490).

2135522042 is a wasteful number, since it uses less digits than its factorization.

2135522042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109824.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2135522042 is about 46211.7089275002. The cubic root of 2135522042 is about 1287.7592737908.

Adding to 2135522042 its reverse (2402255312), we get a palindrome (4537777354).

It can be divided in two parts, 213 and 5522042, that added together give a palindrome (5522255).

The spelling of 2135522042 in words is "two billion, one hundred thirty-five million, five hundred twenty-two thousand, forty-two".