142233277 has 2 divisors, whose sum is σ = 142233278. Its totient is φ = 142233276.

The previous prime is 142233251. The next prime is 142233317. The reversal of 142233277 is 772332241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138627076 + 3606201 = 11774^2 + 1899^2 .

It is an emirp because it is prime and its reverse (772332241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142233277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142233227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71116638 + 71116639.

It is an arithmetic number, because the mean of its divisors is an integer number (71116639).

Almost surely, 2^142233277 is an apocalyptic number.

It is an amenable number.

142233277 is a deficient number, since it is larger than the sum of its proper divisors (1).

142233277 is an equidigital number, since it uses as much as digits as its factorization.

142233277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 31.

The square root of 142233277 is about 11926.1593566412. The cubic root of 142233277 is about 521.9958761779.

The spelling of 142233277 in words is "one hundred forty-two million, two hundred thirty-three thousand, two hundred seventy-seven".