2142023533 has 4 divisors (see below), whose sum is σ = 2306794588. Its totient is φ = 1977252480.

The previous prime is 2142023531. The next prime is 2142023537. The reversal of 2142023533 is 3353202412.

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 316768804 + 1825254729 = 17798^2 + 42723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142023533 - 2¹ = 2142023531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142023498 and 2142023507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142023531) 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, 82385508 + ... + 82385533.

It is an arithmetic number, because the mean of its divisors is an integer number (576698647).

Almost surely, 2^2142023533 is an apocalyptic number.

It is an amenable number.

2142023533 is a deficient number, since it is larger than the sum of its proper divisors (164771055).

2142023533 is a wasteful number, since it uses less digits than its factorization.

2142023533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164771054.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2142023533 is about 46282.0000972300. Note that the first 4 decimals coincide. The cubic root of 2142023533 is about 1289.0647895848.

Adding to 2142023533 its reverse (3353202412), we get a palindrome (5495225945).

The spelling of 2142023533 in words is "two billion, one hundred forty-two million, twenty-three thousand, five hundred thirty-three".