140166144 has 132 divisors (see below), whose sum is σ = 412576944. Its totient is φ = 45821952.

The previous prime is 140166137. The next prime is 140166149. The reversal of 140166144 is 441661041.

140166144 is a `hidden beast` number, since 1 + 40 + 1 + 6 + 614 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (140166149) 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, 617359 + ... + 617585.

Almost surely, 2^140166144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140166144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206288472).

140166144 is an abundant number, since it is smaller than the sum of its proper divisors (272410800).

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

140166144 is a wasteful number, since it uses less digits than its factorization.

140166144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 140166144 is about 11839.1783498687. The cubic root of 140166144 is about 519.4547341605.

The spelling of 140166144 in words is "one hundred forty million, one hundred sixty-six thousand, one hundred forty-four".