140432471 has 16 divisors (see below), whose sum is σ = 148055040. Its totient is φ = 133025760.

The previous prime is 140432447. The next prime is 140432483. The reversal of 140432471 is 174234041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140432471 is a prime.

It is a super-3 number, since 3×140432471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140432471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140432441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518066 + ... + 518336.

It is an arithmetic number, because the mean of its divisors is an integer number (9253440).

Almost surely, 2^140432471 is an apocalyptic number.

140432471 is a deficient number, since it is larger than the sum of its proper divisors (7622569).

140432471 is a wasteful number, since it uses less digits than its factorization.

140432471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 140432471 is about 11850.4207098314. The cubic root of 140432471 is about 519.7835279935.

The spelling of 140432471 in words is "one hundred forty million, four hundred thirty-two thousand, four hundred seventy-one".