140577797 has 2 divisors, whose sum is σ = 140577798. Its totient is φ = 140577796.

The previous prime is 140577769. The next prime is 140577841. The reversal of 140577797 is 797775041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90649441 + 49928356 = 9521^2 + 7066^2 .

It is a cyclic number.

It is not a de Polignac number, because 140577797 - 2¹⁰ = 140576773 is a prime.

It is equal to p_7942889 and since 140577797 and 7942889 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140577737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70288898 + 70288899.

It is an arithmetic number, because the mean of its divisors is an integer number (70288899).

Almost surely, 2^140577797 is an apocalyptic number.

It is an amenable number.

140577797 is a deficient number, since it is larger than the sum of its proper divisors (1).

140577797 is an equidigital number, since it uses as much as digits as its factorization.

140577797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432180, while the sum is 47.

The square root of 140577797 is about 11856.5508053565. The cubic root of 140577797 is about 519.9627648387.

The spelling of 140577797 in words is "one hundred forty million, five hundred seventy-seven thousand, seven hundred ninety-seven".