140416081 has 16 divisors (see below), whose sum is σ = 162892800. Its totient is φ = 119972160.

The previous prime is 140416063. The next prime is 140416091. The reversal of 140416081 is 180614041.

It is a cyclic number.

It is not a de Polignac number, because 140416081 - 2⁵ = 140416049 is a prime.

It is a super-2 number, since 2×140416081² = 39433351606797122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140416051) 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, 1695 + ... + 16843.

It is an arithmetic number, because the mean of its divisors is an integer number (10180800).

Almost surely, 2^140416081 is an apocalyptic number.

It is an amenable number.

140416081 is a deficient number, since it is larger than the sum of its proper divisors (22476719).

140416081 is a wasteful number, since it uses less digits than its factorization.

140416081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15216.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 140416081 is about 11849.7291530229. The cubic root of 140416081 is about 519.7633057391.

The spelling of 140416081 in words is "one hundred forty million, four hundred sixteen thousand, eighty-one".