140464025 has 24 divisors (see below), whose sum is σ = 192659544. Its totient is φ = 100915200.

The previous prime is 140464021. The next prime is 140464031. The reversal of 140464025 is 520464041.

It can be written as a sum of positive squares in 12 ways, for example, as 32137561 + 108326464 = 5669^2 + 10408^2 .

It is not a de Polignac number, because 140464025 - 2² = 140464021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140463985 and 140464003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140464021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6185 + ... + 17865.

It is an arithmetic number, because the mean of its divisors is an integer number (8027481).

Almost surely, 2^140464025 is an apocalyptic number.

It is an amenable number.

140464025 is a deficient number, since it is larger than the sum of its proper divisors (52195519).

140464025 is a wasteful number, since it uses less digits than its factorization.

140464025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741 (or 11736 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140464025 is about 11851.7519801926. The cubic root of 140464025 is about 519.8224554132.

The spelling of 140464025 in words is "one hundred forty million, four hundred sixty-four thousand, twenty-five".