140455807 has 2 divisors, whose sum is σ = 140455808. Its totient is φ = 140455806.

The previous prime is 140455801. The next prime is 140455829. The reversal of 140455807 is 708554041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140455807 - 2¹¹ = 140453759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140455801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70227903 + 70227904.

It is an arithmetic number, because the mean of its divisors is an integer number (70227904).

Almost surely, 2^140455807 is an apocalyptic number.

140455807 is a deficient number, since it is larger than the sum of its proper divisors (1).

140455807 is an equidigital number, since it uses as much as digits as its factorization.

140455807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 140455807 is about 11851.4052753249. The cubic root of 140455807 is about 519.8123176234.

The spelling of 140455807 in words is "one hundred forty million, four hundred fifty-five thousand, eight hundred seven".