140536187 has 16 divisors (see below), whose sum is σ = 161561088. Its totient is φ = 120996480.

The previous prime is 140536177. The next prime is 140536199. The reversal of 140536187 is 781635041.

It is not a de Polignac number, because 140536187 - 2⁸ = 140535931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140536177) 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 15 ways as a sum of consecutive naturals, for example, 23363 + ... + 28755.

It is an arithmetic number, because the mean of its divisors is an integer number (10097568).

Almost surely, 2^140536187 is an apocalyptic number.

140536187 is a deficient number, since it is larger than the sum of its proper divisors (21024901).

140536187 is a wasteful number, since it uses less digits than its factorization.

140536187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530.

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

The square root of 140536187 is about 11854.7959493194. The cubic root of 140536187 is about 519.9114580508.

The spelling of 140536187 in words is "one hundred forty million, five hundred thirty-six thousand, one hundred eighty-seven".