802140497 has 2 divisors, whose sum is σ = 802140498. Its totient is φ = 802140496.

The previous prime is 802140491. The next prime is 802140511. The reversal of 802140497 is 794041208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703257361 + 98883136 = 26519^2 + 9944^2 .

It is a cyclic number.

It is not a de Polignac number, because 802140497 - 2¹⁸ = 801878353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (802140491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401070248 + 401070249.

It is an arithmetic number, because the mean of its divisors is an integer number (401070249).

Almost surely, 2^802140497 is an apocalyptic number.

It is an amenable number.

802140497 is a deficient number, since it is larger than the sum of its proper divisors (1).

802140497 is an equidigital number, since it uses as much as digits as its factorization.

802140497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 802140497 is about 28322.0849691544. The cubic root of 802140497 is about 929.1449716461.

The spelling of 802140497 in words is "eight hundred two million, one hundred forty thousand, four hundred ninety-seven".