140111166 has 32 divisors (see below), whose sum is σ = 303972480. Its totient is φ = 42797664.

The previous prime is 140111159. The next prime is 140111201. The reversal of 140111166 is 661111041.

It is a super-2 number, since 2×140111166² = 39262277675759112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4381 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (9499140).

Almost surely, 2^140111166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140111166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151986240).

140111166 is an abundant number, since it is smaller than the sum of its proper divisors (163861314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140111166 is a wasteful number, since it uses less digits than its factorization.

140111166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 140111166 is about 11836.8562549353. The cubic root of 140111166 is about 519.3868092530.

The spelling of 140111166 in words is "one hundred forty million, one hundred eleven thousand, one hundred sixty-six".