140625646 has 8 divisors (see below), whose sum is σ = 241072560. Its totient is φ = 60268128.

The previous prime is 140625599. The next prime is 140625671. The reversal of 140625646 is 646526041.

140625646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022331 + ... + 5022358.

It is an arithmetic number, because the mean of its divisors is an integer number (30134070).

Almost surely, 2^140625646 is an apocalyptic number.

140625646 is a deficient number, since it is larger than the sum of its proper divisors (100446914).

140625646 is a wasteful number, since it uses less digits than its factorization.

140625646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044698.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 140625646 is about 11858.5684633517. The cubic root of 140625646 is about 520.0217520487.

The spelling of 140625646 in words is "one hundred forty million, six hundred twenty-five thousand, six hundred forty-six".