140881617 has 12 divisors (see below), whose sum is σ = 208459524. Its totient is φ = 91630080.

The previous prime is 140881603. The next prime is 140881633. The reversal of 140881617 is 716188041.

140881617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 95238081 = 6756^2 + 9759^2 .

It is not a de Polignac number, because 140881617 - 2⁶ = 140881553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140881667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190528 + ... + 191265.

It is an arithmetic number, because the mean of its divisors is an integer number (17371627).

Almost surely, 2^140881617 is an apocalyptic number.

It is an amenable number.

140881617 is a deficient number, since it is larger than the sum of its proper divisors (67577907).

140881617 is a wasteful number, since it uses less digits than its factorization.

140881617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381840 (or 381837 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 140881617 is about 11869.3562167457. The cubic root of 140881617 is about 520.3370805096.

The spelling of 140881617 in words is "one hundred forty million, eight hundred eighty-one thousand, six hundred seventeen".