140049187 has 4 divisors (see below), whose sum is σ = 140182000. Its totient is φ = 139916376.

The previous prime is 140049109. The next prime is 140049193. The reversal of 140049187 is 781940041.

140049187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 140049187 - 2¹⁵ = 140016419 is a prime.

It is a super-2 number, since 2×140049187² = 39227549558721938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140044187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64812 + ... + 66937.

It is an arithmetic number, because the mean of its divisors is an integer number (35045500).

Almost surely, 2^140049187 is an apocalyptic number.

140049187 is a deficient number, since it is larger than the sum of its proper divisors (132813).

140049187 is a wasteful number, since it uses less digits than its factorization.

140049187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132812.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 140049187 is about 11834.2379137822. The cubic root of 140049187 is about 519.3102133524.

The spelling of 140049187 in words is "one hundred forty million, forty-nine thousand, one hundred eighty-seven".