140019528 has 64 divisors (see below), whose sum is σ = 384134400. Its totient is φ = 42178880.

The previous prime is 140019527. The next prime is 140019541. The reversal of 140019528 is 825910041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140019495 and 140019504.

It is not an unprimeable number, because it can be changed into a prime (140019527) 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, 45775 + ... + 48737.

It is an arithmetic number, because the mean of its divisors is an integer number (6002100).

Almost surely, 2^140019528 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 140019528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192067200).

140019528 is an abundant number, since it is smaller than the sum of its proper divisors (244114872).

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

140019528 is a wasteful number, since it uses less digits than its factorization.

140019528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 140019528 is about 11832.9847460394. The cubic root of 140019528 is about 519.2735516876.

Adding to 140019528 its reverse (825910041), we get a palindrome (965929569).

The spelling of 140019528 in words is "one hundred forty million, nineteen thousand, five hundred twenty-eight".