140013504 has 84 divisors (see below), whose sum is σ = 410729176. Its totient is φ = 45577728.

The previous prime is 140013499. The next prime is 140013509. The reversal of 140013504 is 405310041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140013499) and next prime (140013509).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140013509) 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, 21942 + ... + 27594.

Almost surely, 2^140013504 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 140013504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205364588).

140013504 is an abundant number, since it is smaller than the sum of its proper divisors (270715672).

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

140013504 is a wasteful number, since it uses less digits than its factorization.

140013504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140013504 is about 11832.7302005919. The cubic root of 140013504 is about 519.2661047532.

Adding to 140013504 its reverse (405310041), we get a palindrome (545323545).

The spelling of 140013504 in words is "one hundred forty million, thirteen thousand, five hundred four".