2142377 has 2 divisors, whose sum is σ = 2142378. Its totient is φ = 2142376.

The previous prime is 2142353. The next prime is 2142397. The reversal of 2142377 is 7732412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1893376 + 249001 = 1376^2 + 499^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142377 - 2⁸ = 2142121 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (2142397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071188 + 1071189.

It is an arithmetic number, because the mean of its divisors is an integer number (1071189).

2^2142377 is an apocalyptic number.

It is an amenable number.

2142377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142377 is an equidigital number, since it uses as much as digits as its factorization.

2142377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 26.

The square root of 2142377 is about 1463.6861002278. The cubic root of 2142377 is about 128.9135690892.

Adding to 2142377 its reverse (7732412), we get a palindrome (9874789).

The spelling of 2142377 in words is "two million, one hundred forty-two thousand, three hundred seventy-seven".