2142045077 has 2 divisors, whose sum is σ = 2142045078. Its totient is φ = 2142045076.

The previous prime is 2142045049. The next prime is 2142045109. The reversal of 2142045077 is 7705402412.

It is an a-pointer prime, because the next prime (2142045109) can be obtained adding 2142045077 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138692516 + 3352561 = 46246^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142045077 - 2²² = 2137850773 is a prime.

It is a super-2 number, since 2×2142045077² = 9176714223799871858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142044077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071022538 + 1071022539.

It is an arithmetic number, because the mean of its divisors is an integer number (1071022539).

Almost surely, 2^2142045077 is an apocalyptic number.

It is an amenable number.

2142045077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142045077 is an equidigital number, since it uses as much as digits as its factorization.

2142045077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 2142045077 is about 46282.2328437166. The cubic root of 2142045077 is about 1289.0691112801.

Adding to 2142045077 its reverse (7705402412), we get a palindrome (9847447489).

The spelling of 2142045077 in words is "two billion, one hundred forty-two million, forty-five thousand, seventy-seven".