140422500 has 135 divisors (see below), whose sum is σ = 449239791. Its totient is φ = 36972000.

The previous prime is 140422489. The next prime is 140422507. The reversal of 140422500 is 5224041.

The square root of 140422500 is 11850.

It is a perfect power (a square), and thus also a powerful number.

140422500 is a `hidden beast` number, since 140 + 4 + 22 + 500 = 666.

140422500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 129413376 = 3318^2 + 11376^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140422507) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1777461 + ... + 1777539.

Almost surely, 2^140422500 is an apocalyptic number.

140422500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140422500 is the 11850-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140422500

140422500 is an abundant number, since it is smaller than the sum of its proper divisors (308817291).

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

140422500 is an equidigital number, since it uses as much as digits as its factorization.

140422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The cubic root of 140422500 is about 519.7712257954.

Adding to 140422500 its reverse (5224041), we get a palindrome (145646541).

The spelling of 140422500 in words is "one hundred forty million, four hundred twenty-two thousand, five hundred".