140541497 has 2 divisors, whose sum is σ = 140541498. Its totient is φ = 140541496.

The previous prime is 140541487. The next prime is 140541509. The reversal of 140541497 is 794145041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111175936 + 29365561 = 10544^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 140541497 - 2⁶ = 140541433 is a prime.

It is not a weakly prime, because it can be changed into another prime (140541407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70270748 + 70270749.

It is an arithmetic number, because the mean of its divisors is an integer number (70270749).

Almost surely, 2^140541497 is an apocalyptic number.

It is an amenable number.

140541497 is a deficient number, since it is larger than the sum of its proper divisors (1).

140541497 is an equidigital number, since it uses as much as digits as its factorization.

140541497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 140541497 is about 11855.0199071954. The cubic root of 140541497 is about 519.9180060560.

It can be divided in two parts, 14054 and 1497, that added together give a palindrome (15551).

The spelling of 140541497 in words is "one hundred forty million, five hundred forty-one thousand, four hundred ninety-seven".