140145216 has 112 divisors (see below), whose sum is σ = 400263360. Its totient is φ = 43130880.

The previous prime is 140145191. The next prime is 140145217. The reversal of 140145216 is 612541041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (140145217) 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, 149100 + ... + 150036.

It is an arithmetic number, because the mean of its divisors is an integer number (3573780).

Almost surely, 2^140145216 is an apocalyptic number.

140145216 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 140145216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200131680).

140145216 is an abundant number, since it is smaller than the sum of its proper divisors (260118144).

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

140145216 is a wasteful number, since it uses less digits than its factorization.

140145216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140145216 is about 11838.2944717556. The cubic root of 140145216 is about 519.4288798672.

Adding to 140145216 its reverse (612541041), we get a palindrome (752686257).

The spelling of 140145216 in words is "one hundred forty million, one hundred forty-five thousand, two hundred sixteen".