140145500 has 96 divisors (see below), whose sum is σ = 339026688. Its totient is φ = 50184000.

The previous prime is 140145491. The next prime is 140145527. The reversal of 140145500 is 5541041.

140145500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140145500² = 39281522340500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456347 + ... + 456653.

It is an arithmetic number, because the mean of its divisors is an integer number (3531528).

Almost surely, 2^140145500 is an apocalyptic number.

140145500 is a gapful number since it is divisible by the number (10) 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 140145500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169513344).

140145500 is an abundant number, since it is smaller than the sum of its proper divisors (198881188).

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

140145500 is a wasteful number, since it uses less digits than its factorization.

140145500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 140145500 is about 11838.3064667207. The cubic root of 140145500 is about 519.4292307359.

Adding to 140145500 its reverse (5541041), we get a palindrome (145686541).

The spelling of 140145500 in words is "one hundred forty million, one hundred forty-five thousand, five hundred".