140200491 has 4 divisors (see below), whose sum is σ = 186933992. Its totient is φ = 93466992.

The previous prime is 140200469. The next prime is 140200493. The reversal of 140200491 is 194002041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140200491 - 2¹⁵ = 140167723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140200493) 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 in 3 ways as a sum of consecutive naturals, for example, 23366746 + ... + 23366751.

It is an arithmetic number, because the mean of its divisors is an integer number (46733498).

Almost surely, 2^140200491 is an apocalyptic number.

140200491 is a deficient number, since it is larger than the sum of its proper divisors (46733501).

140200491 is an equidigital number, since it uses as much as digits as its factorization.

140200491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46733500.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 140200491 is about 11840.6288262068. The cubic root of 140200491 is about 519.4971606079.

The spelling of 140200491 in words is "one hundred forty million, two hundred thousand, four hundred ninety-one".