140025144 has 48 divisors (see below), whose sum is σ = 407219400. Its totient is φ = 40006848.

The previous prime is 140025143. The next prime is 140025181. The reversal of 140025144 is 441520041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 140025144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140025143) 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, 58359 + ... + 60710.

Almost surely, 2^140025144 is an apocalyptic number.

140025144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140025144 is an abundant number, since it is smaller than the sum of its proper divisors (267194256).

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

140025144 is a wasteful number, since it uses less digits than its factorization.

140025144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119092 (or 119081 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 140025144 is about 11833.2220464251. Note that the first 3 decimals coincide. The cubic root of 140025144 is about 519.2804940557.

Adding to 140025144 its reverse (441520041), we get a palindrome (581545185).

The spelling of 140025144 in words is "one hundred forty million, twenty-five thousand, one hundred forty-four".