2142535631 has 4 divisors (see below), whose sum is σ = 2216416200. Its totient is φ = 2068655064.

The previous prime is 2142535621. The next prime is 2142535649. The reversal of 2142535631 is 1365352412.

It is a happy number.

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 2142535631 - 2¹⁰ = 2142534607 is a prime.

It is a super-2 number, since 2×2142535631² = 9180917860209136322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142535621) 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, 36940241 + ... + 36940298.

It is an arithmetic number, because the mean of its divisors is an integer number (554104050).

Almost surely, 2^2142535631 is an apocalyptic number.

2142535631 is a deficient number, since it is larger than the sum of its proper divisors (73880569).

2142535631 is an equidigital number, since it uses as much as digits as its factorization.

2142535631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73880568.

The product of its digits is 21600, while the sum is 32.

The square root of 2142535631 is about 46287.5321333942. The cubic root of 2142535631 is about 1289.1675078621.

The spelling of 2142535631 in words is "two billion, one hundred forty-two million, five hundred thirty-five thousand, six hundred thirty-one".