2142031126 has 4 divisors (see below), whose sum is σ = 3213046692. Its totient is φ = 1071015562.

The previous prime is 2142031123. The next prime is 2142031141. The reversal of 2142031126 is 6211302412.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2142031097 and 2142031106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142031123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535507780 + ... + 535507783.

It is an arithmetic number, because the mean of its divisors is an integer number (803261673).

Almost surely, 2^2142031126 is an apocalyptic number.

2142031126 is a deficient number, since it is larger than the sum of its proper divisors (1071015566).

2142031126 is a wasteful number, since it uses less digits than its factorization.

2142031126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071015565.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2142031126 is about 46282.0821268879. The cubic root of 2142031126 is about 1289.0663127329.

Adding to 2142031126 its reverse (6211302412), we get a palindrome (8353333538).

The spelling of 2142031126 in words is "two billion, one hundred forty-two million, thirty-one thousand, one hundred twenty-six".