140188955 has 4 divisors (see below), whose sum is σ = 168226752. Its totient is φ = 112151160.

The previous prime is 140188931. The next prime is 140188999. The reversal of 140188955 is 559881041.

140188955 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 de Polignac number, because none of the positive numbers 2^k-140188955 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14018891 + ... + 14018900.

It is an arithmetic number, because the mean of its divisors is an integer number (42056688).

Almost surely, 2^140188955 is an apocalyptic number.

140188955 is a deficient number, since it is larger than the sum of its proper divisors (28037797).

140188955 is an equidigital number, since it uses as much as digits as its factorization.

140188955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28037796.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 140188955 is about 11840.1416798956. The cubic root of 140188955 is about 519.4829117666.

The spelling of 140188955 in words is "one hundred forty million, one hundred eighty-eight thousand, nine hundred fifty-five".