142026281 has 2 divisors, whose sum is σ = 142026282. Its totient is φ = 142026280.

The previous prime is 142026257. The next prime is 142026293. The reversal of 142026281 is 182620241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111112681 + 30913600 = 10541^2 + 5560^2 .

It is a cyclic number.

It is not a de Polignac number, because 142026281 - 2⁶ = 142026217 is a prime.

It is a super-2 number, since 2×142026281² = 40342928989381922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142026281.

It is not a weakly prime, because it can be changed into another prime (142026481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71013140 + 71013141.

It is an arithmetic number, because the mean of its divisors is an integer number (71013141).

Almost surely, 2^142026281 is an apocalyptic number.

It is an amenable number.

142026281 is a deficient number, since it is larger than the sum of its proper divisors (1).

142026281 is an equidigital number, since it uses as much as digits as its factorization.

142026281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 142026281 is about 11917.4779630591. The cubic root of 142026281 is about 521.7425282515.

The spelling of 142026281 in words is "one hundred forty-two million, twenty-six thousand, two hundred eighty-one".