142371797 has 2 divisors, whose sum is σ = 142371798. Its totient is φ = 142371796.

The previous prime is 142371793. The next prime is 142371841. The reversal of 142371797 is 797173241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142301041 + 70756 = 11929^2 + 266^2 .

It is a cyclic number.

It is not a de Polignac number, because 142371797 - 2² = 142371793 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 (142371791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71185898 + 71185899.

It is an arithmetic number, because the mean of its divisors is an integer number (71185899).

Almost surely, 2^142371797 is an apocalyptic number.

It is an amenable number.

142371797 is a deficient number, since it is larger than the sum of its proper divisors (1).

142371797 is an equidigital number, since it uses as much as digits as its factorization.

142371797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 142371797 is about 11931.9653452397. The cubic root of 142371797 is about 522.1652772490.

The spelling of 142371797 in words is "one hundred forty-two million, three hundred seventy-one thousand, seven hundred ninety-seven".