2142236077 has 16 divisors (see below), whose sum is σ = 2289917952. Its totient is φ = 1999367920.

The previous prime is 2142236053. The next prime is 2142236081. The reversal of 2142236077 is 7706322412.

It is a de Polignac number, because none of the positive numbers 2^k-2142236077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142236477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372252 + ... + 377962.

It is an arithmetic number, because the mean of its divisors is an integer number (143119872).

Almost surely, 2^2142236077 is an apocalyptic number.

It is an amenable number.

2142236077 is a deficient number, since it is larger than the sum of its proper divisors (147681875).

2142236077 is a wasteful number, since it uses less digits than its factorization.

2142236077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 2142236077 is about 46284.2962245295. The cubic root of 2142236077 is about 1289.1074243366.

Adding to 2142236077 its reverse (7706322412), we get a palindrome (9848558489).

The spelling of 2142236077 in words is "two billion, one hundred forty-two million, two hundred thirty-six thousand, seventy-seven".