140576645 has 16 divisors (see below), whose sum is σ = 187151040. Its totient is φ = 100502400.

The previous prime is 140576641. The next prime is 140576699. The reversal of 140576645 is 546675041.

It is not a de Polignac number, because 140576645 - 2² = 140576641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140576599 and 140576608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140576641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18416 + ... + 24905.

It is an arithmetic number, because the mean of its divisors is an integer number (11696940).

Almost surely, 2^140576645 is an apocalyptic number.

It is an amenable number.

140576645 is a deficient number, since it is larger than the sum of its proper divisors (46574395).

140576645 is a wasteful number, since it uses less digits than its factorization.

140576645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43396.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 140576645 is about 11856.5022245180. The cubic root of 140576645 is about 519.9613445131.

It can be divided in two parts, 14057 and 6645, that added together give a palindrome (20702).

The spelling of 140576645 in words is "one hundred forty million, five hundred seventy-six thousand, six hundred forty-five".