142011677 has 2 divisors, whose sum is σ = 142011678. Its totient is φ = 142011676.

The previous prime is 142011641. The next prime is 142011691. The reversal of 142011677 is 776110241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79459396 + 62552281 = 8914^2 + 7909^2 .

It is an emirp because it is prime and its reverse (776110241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142011677 - 2¹² = 142007581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142011277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71005838 + 71005839.

It is an arithmetic number, because the mean of its divisors is an integer number (71005839).

Almost surely, 2^142011677 is an apocalyptic number.

It is an amenable number.

142011677 is a deficient number, since it is larger than the sum of its proper divisors (1).

142011677 is an equidigital number, since it uses as much as digits as its factorization.

142011677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 142011677 is about 11916.8652337769. The cubic root of 142011677 is about 521.7246447326.

The spelling of 142011677 in words is "one hundred forty-two million, eleven thousand, six hundred seventy-seven".