140488471 has 4 divisors (see below), whose sum is σ = 140728392. Its totient is φ = 140248552.

The previous prime is 140488457. The next prime is 140488483. The reversal of 140488471 is 174884041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140488471 - 2⁹ = 140487959 is a prime.

It is a super-3 number, since 3×140488471³ (a number of 25 digits) contains 333 as substring.

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 140488471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140488571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119080 + ... + 120253.

It is an arithmetic number, because the mean of its divisors is an integer number (35182098).

Almost surely, 2^140488471 is an apocalyptic number.

140488471 is a deficient number, since it is larger than the sum of its proper divisors (239921).

140488471 is an equidigital number, since it uses as much as digits as its factorization.

140488471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239920.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 140488471 is about 11852.7832596399. The cubic root of 140488471 is about 519.8526098545.

The spelling of 140488471 in words is "one hundred forty million, four hundred eighty-eight thousand, four hundred seventy-one".