140225520 has 80 divisors (see below), whose sum is σ = 460283040. Its totient is φ = 35192832.

The previous prime is 140225513. The next prime is 140225521. The reversal of 140225520 is 25522041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140225521) 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, 13105 + ... + 21264.

It is an arithmetic number, because the mean of its divisors is an integer number (5753538).

Almost surely, 2^140225520 is an apocalyptic number.

140225520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140225520 is an abundant number, since it is smaller than the sum of its proper divisors (320057520).

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

140225520 is a wasteful number, since it uses less digits than its factorization.

140225520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34402 (or 34396 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 140225520 is about 11841.6856908128. The cubic root of 140225520 is about 519.5280728172.

Adding to 140225520 its reverse (25522041), we get a palindrome (165747561).

The spelling of 140225520 in words is "one hundred forty million, two hundred twenty-five thousand, five hundred twenty".