140034191 has 4 divisors (see below), whose sum is σ = 152764584. Its totient is φ = 127303800.

The previous prime is 140034179. The next prime is 140034211. The reversal of 140034191 is 191430041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191430041 = 11 ⋅17402731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140034191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365180 + ... + 6365201.

It is an arithmetic number, because the mean of its divisors is an integer number (38191146).

Almost surely, 2^140034191 is an apocalyptic number.

140034191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140034191 is a deficient number, since it is larger than the sum of its proper divisors (12730393).

140034191 is a wasteful number, since it uses less digits than its factorization.

140034191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730392.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 140034191 is about 11833.6043114514. The cubic root of 140034191 is about 519.2916773554.

The spelling of 140034191 in words is "one hundred forty million, thirty-four thousand, one hundred ninety-one".