140035457 has 2 divisors, whose sum is σ = 140035458. Its totient is φ = 140035456.

The previous prime is 140035451. The next prime is 140035517. The reversal of 140035457 is 754530041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116985856 + 23049601 = 10816^2 + 4801^2 .

It is a cyclic number.

It is not a de Polignac number, because 140035457 - 2⁶ = 140035393 is a prime.

It is not a weakly prime, because it can be changed into another prime (140035451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70017728 + 70017729.

It is an arithmetic number, because the mean of its divisors is an integer number (70017729).

Almost surely, 2^140035457 is an apocalyptic number.

It is an amenable number.

140035457 is a deficient number, since it is larger than the sum of its proper divisors (1).

140035457 is an equidigital number, since it uses as much as digits as its factorization.

140035457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 140035457 is about 11833.6578030633. The cubic root of 140035457 is about 519.2932422619.

Adding to 140035457 its reverse (754530041), we get a palindrome (894565498).

The spelling of 140035457 in words is "one hundred forty million, thirty-five thousand, four hundred fifty-seven".