140254417 has 2 divisors, whose sum is σ = 140254418. Its totient is φ = 140254416.

The previous prime is 140254397. The next prime is 140254421. The reversal of 140254417 is 714452041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133541136 + 6713281 = 11556^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 140254417 - 2²³ = 131865809 is a prime.

It is not a weakly prime, because it can be changed into another prime (140254427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70127208 + 70127209.

It is an arithmetic number, because the mean of its divisors is an integer number (70127209).

Almost surely, 2^140254417 is an apocalyptic number.

It is an amenable number.

140254417 is a deficient number, since it is larger than the sum of its proper divisors (1).

140254417 is an equidigital number, since it uses as much as digits as its factorization.

140254417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 140254417 is about 11842.9057667449. The cubic root of 140254417 is about 519.5637576473.

The spelling of 140254417 in words is "one hundred forty million, two hundred fifty-four thousand, four hundred seventeen".