140054187 has 96 divisors (see below), whose sum is σ = 254853120. Its totient is φ = 66718080.

The previous prime is 140054183. The next prime is 140054191. The reversal of 140054187 is 781450041.

It is an interprime number because it is at equal distance from previous prime (140054183) and next prime (140054191).

It is not a de Polignac number, because 140054187 - 2² = 140054183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140054183) 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 95 ways as a sum of consecutive naturals, for example, 2090328 + ... + 2090394.

It is an arithmetic number, because the mean of its divisors is an integer number (2654720).

Almost surely, 2^140054187 is an apocalyptic number.

140054187 is a deficient number, since it is larger than the sum of its proper divisors (114798933).

140054187 is a wasteful number, since it uses less digits than its factorization.

140054187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 140054187 is about 11834.4491633536. The cubic root of 140054187 is about 519.3163933720.

The spelling of 140054187 in words is "one hundred forty million, fifty-four thousand, one hundred eighty-seven".