140859936 has 144 divisors (see below), whose sum is σ = 462780864. Its totient is φ = 39808512.

The previous prime is 140859883. The next prime is 140859947. The reversal of 140859936 is 639958041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 140859891 and 140859900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215386 + ... + 216038.

It is an arithmetic number, because the mean of its divisors is an integer number (3213756).

Almost surely, 2^140859936 is an apocalyptic number.

140859936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140859936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231390432).

140859936 is an abundant number, since it is smaller than the sum of its proper divisors (321920928).

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

140859936 is a wasteful number, since it uses less digits than its factorization.

140859936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 140859936 is about 11868.4428633246. The cubic root of 140859936 is about 520.3103866862.

The spelling of 140859936 in words is "one hundred forty million, eight hundred fifty-nine thousand, nine hundred thirty-six".