142497651677 has 2 divisors, whose sum is σ = 142497651678. Its totient is φ = 142497651676.

The previous prime is 142497651589. The next prime is 142497651743. The reversal of 142497651677 is 776156794241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80391529156 + 62106122521 = 283534^2 + 249211^2 .

It is a cyclic number.

It is not a de Polignac number, because 142497651677 - 2³² = 138202684381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142497653677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71248825838 + 71248825839.

It is an arithmetic number, because the mean of its divisors is an integer number (71248825839).

Almost surely, 2^142497651677 is an apocalyptic number.

It is an amenable number.

142497651677 is a deficient number, since it is larger than the sum of its proper divisors (1).

142497651677 is an equidigital number, since it uses as much as digits as its factorization.

142497651677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17781120, while the sum is 59.

The spelling of 142497651677 in words is "one hundred forty-two billion, four hundred ninety-seven million, six hundred fifty-one thousand, six hundred seventy-seven".