140909616 has 120 divisors (see below), whose sum is σ = 413478000. Its totient is φ = 44748288.

The previous prime is 140909611. The next prime is 140909683. The reversal of 140909616 is 616909041.

140909616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140909611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282135 + ... + 282633.

It is an arithmetic number, because the mean of its divisors is an integer number (3445650).

Almost surely, 2^140909616 is an apocalyptic number.

140909616 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 140909616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206739000).

140909616 is an abundant number, since it is smaller than the sum of its proper divisors (272568384).

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

140909616 is a wasteful number, since it uses less digits than its factorization.

140909616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 140909616 is about 11870.5356239725. The cubic root of 140909616 is about 520.3715490542.

The spelling of 140909616 in words is "one hundred forty million, nine hundred nine thousand, six hundred sixteen".