140661225 has 24 divisors (see below), whose sum is σ = 258401120. Its totient is φ = 75018960.

The previous prime is 140661197. The next prime is 140661253. The reversal of 140661225 is 522166041.

140661225 is a `hidden beast` number, since 1 + 40 + 6 + 612 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (140661197) and next prime (140661253).

It is not a de Polignac number, because 140661225 - 2⁷ = 140661097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103519 + ... + 104868.

Almost surely, 2^140661225 is an apocalyptic number.

140661225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140661225 is a deficient number, since it is larger than the sum of its proper divisors (117739895).

140661225 is a wasteful number, since it uses less digits than its factorization.

140661225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208406 (or 208395 counting only the distinct ones).

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

The square root of 140661225 is about 11860.0685073907. The cubic root of 140661225 is about 520.0656043954.

The spelling of 140661225 in words is "one hundred forty million, six hundred sixty-one thousand, two hundred twenty-five".