140220881 has 16 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 133473600.

The previous prime is 140220877. The next prime is 140220889. The reversal of 140220881 is 188022041.

140220881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140220881 - 2² = 140220877 is a prime.

It is a super-2 number, since 2×140220881² = 39323790936832322, which contains 22 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 140220881.

It is not an unprimeable number, because it can be changed into a prime (140220889) 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, 450716 + ... + 451026.

It is an arithmetic number, because the mean of its divisors is an integer number (9199008).

Almost surely, 2^140220881 is an apocalyptic number.

It is an amenable number.

140220881 is a deficient number, since it is larger than the sum of its proper divisors (6963247).

140220881 is a wasteful number, since it uses less digits than its factorization.

140220881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 140220881 is about 11841.4898133639. The cubic root of 140220881 is about 519.5223436715.

The spelling of 140220881 in words is "one hundred forty million, two hundred twenty thousand, eight hundred eighty-one".