140940225 has 36 divisors (see below), whose sum is σ = 255514896. Its totient is φ = 74252640.

The previous prime is 140940223. The next prime is 140940227. The reversal of 140940225 is 522049041.

It is an interprime number because it is at equal distance from previous prime (140940223) and next prime (140940227).

It is not a de Polignac number, because 140940225 - 2¹ = 140940223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140940221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14902 + ... + 22448.

It is an arithmetic number, because the mean of its divisors is an integer number (7097636).

Almost surely, 2^140940225 is an apocalyptic number.

140940225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140940225 is a deficient number, since it is larger than the sum of its proper divisors (114574671).

140940225 is a wasteful number, since it uses less digits than its factorization.

140940225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646 (or 7638 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 140940225 is about 11871.8248386674. The cubic root of 140940225 is about 520.4092254504.

Adding to 140940225 its reverse (522049041), we get a palindrome (662989266).

The spelling of 140940225 in words is "one hundred forty million, nine hundred forty thousand, two hundred twenty-five".