140880671 has 4 divisors (see below), whose sum is σ = 141082344. Its totient is φ = 140679000.

The previous prime is 140880661. The next prime is 140880679. The reversal of 140880671 is 176088041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140880671 is a prime.

It is a super-2 number, since 2×140880671² = 39694726922820482, which contains 22 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 (140880679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99785 + ... + 101186.

It is an arithmetic number, because the mean of its divisors is an integer number (35270586).

Almost surely, 2^140880671 is an apocalyptic number.

140880671 is a deficient number, since it is larger than the sum of its proper divisors (201673).

140880671 is an equidigital number, since it uses as much as digits as its factorization.

140880671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201672.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 140880671 is about 11869.3163661603. The cubic root of 140880671 is about 520.3359158439.

The spelling of 140880671 in words is "one hundred forty million, eight hundred eighty thousand, six hundred seventy-one".