140534471 has 16 divisors (see below), whose sum is σ = 177189120. Its totient is φ = 108271680.

The previous prime is 140534453. The next prime is 140534483. The reversal of 140534471 is 174435041.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-140534471 is a prime.

It is a super-3 number, since 3×140534471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140534411) 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 15 ways as a sum of consecutive naturals, for example, 3401 + ... + 17106.

It is an arithmetic number, because the mean of its divisors is an integer number (11074320).

Almost surely, 2^140534471 is an apocalyptic number.

140534471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140534471 is a deficient number, since it is larger than the sum of its proper divisors (36654649).

140534471 is a wasteful number, since it uses less digits than its factorization.

140534471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140534471 is about 11854.7235733272. The cubic root of 140534471 is about 519.9093419370.

The spelling of 140534471 in words is "one hundred forty million, five hundred thirty-four thousand, four hundred seventy-one".