140078645 has 8 divisors (see below), whose sum is σ = 192107904. Its totient is φ = 96053904.

The previous prime is 140078639. The next prime is 140078663. The reversal of 140078645 is 546870041.

140078645 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 cyclic number.

It is not a de Polignac number, because 140078645 - 2¹⁰ = 140077621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 4002247 = 140078645 / (1 + 4 + 0 + 0 + 7 + 8 + 6 + 4 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001089 + ... + 2001158.

It is an arithmetic number, because the mean of its divisors is an integer number (24013488).

Almost surely, 2^140078645 is an apocalyptic number.

It is an amenable number.

140078645 is a deficient number, since it is larger than the sum of its proper divisors (52029259).

140078645 is an equidigital number, since it uses as much as digits as its factorization.

140078645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002259.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 140078645 is about 11835.4824574244. The cubic root of 140078645 is about 519.3466214366.

The spelling of 140078645 in words is "one hundred forty million, seventy-eight thousand, six hundred forty-five".