140490091 has 16 divisors (see below), whose sum is σ = 171702720. Its totient is φ = 112204800.

The previous prime is 140490079. The next prime is 140490107. The reversal of 140490091 is 190094041.

It is a cyclic number.

It is not a de Polignac number, because 140490091 - 2⁹ = 140489579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140490001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6175 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (10731420).

Almost surely, 2^140490091 is an apocalyptic number.

140490091 is a deficient number, since it is larger than the sum of its proper divisors (31212629).

140490091 is a wasteful number, since it uses less digits than its factorization.

140490091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 140490091 is about 11852.8515978224. The cubic root of 140490091 is about 519.8546080208.

The spelling of 140490091 in words is "one hundred forty million, four hundred ninety thousand, ninety-one".