140459101 has 2 divisors, whose sum is σ = 140459102. Its totient is φ = 140459100.

The previous prime is 140459089. The next prime is 140459119. The reversal of 140459101 is 101954041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140067225 + 391876 = 11835^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 140459101 - 2⁵ = 140459069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140459131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70229550 + 70229551.

It is an arithmetic number, because the mean of its divisors is an integer number (70229551).

Almost surely, 2^140459101 is an apocalyptic number.

It is an amenable number.

140459101 is a deficient number, since it is larger than the sum of its proper divisors (1).

140459101 is an equidigital number, since it uses as much as digits as its factorization.

140459101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 140459101 is about 11851.5442453716. The cubic root of 140459101 is about 519.8163811753.

The spelling of 140459101 in words is "one hundred forty million, four hundred fifty-nine thousand, one hundred one".