142014881 has 2 divisors, whose sum is σ = 142014882. Its totient is φ = 142014880.

The previous prime is 142014877. The next prime is 142014883. The reversal of 142014881 is 188410241.

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., 136515856 + 5499025 = 11684^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 142014881 - 2² = 142014877 is a prime.

It is a super-2 number, since 2×142014881² = 40336452850888322, which contains 22 as substring.

Together with 142014883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142014883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71007440 + 71007441.

It is an arithmetic number, because the mean of its divisors is an integer number (71007441).

Almost surely, 2^142014881 is an apocalyptic number.

It is an amenable number.

142014881 is a deficient number, since it is larger than the sum of its proper divisors (1).

142014881 is an equidigital number, since it uses as much as digits as its factorization.

142014881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 142014881 is about 11916.9996643450. Note that the first 3 decimals coincide. The cubic root of 142014881 is about 521.7285683376.

The spelling of 142014881 in words is "one hundred forty-two million, fourteen thousand, eight hundred eighty-one".