140280225 has 12 divisors (see below), whose sum is σ = 231930096. Its totient is φ = 74816080.

The previous prime is 140280223. The next prime is 140280247. The reversal of 140280225 is 522082041.

It is not a de Polignac number, because 140280225 - 2¹ = 140280223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140280195 and 140280204.

It is not an unprimeable number, because it can be changed into a prime (140280223) 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, 935127 + ... + 935276.

It is an arithmetic number, because the mean of its divisors is an integer number (19327508).

Almost surely, 2^140280225 is an apocalyptic number.

140280225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140280225 is a deficient number, since it is larger than the sum of its proper divisors (91649871).

140280225 is a wasteful number, since it uses less digits than its factorization.

140280225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870416 (or 1870411 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 140280225 is about 11843.9953140822. The cubic root of 140280225 is about 519.5956237360.

The spelling of 140280225 in words is "one hundred forty million, two hundred eighty thousand, two hundred twenty-five".