140864145 has 16 divisors (see below), whose sum is σ = 226158912. Its totient is φ = 74868800.

The previous prime is 140864137. The next prime is 140864147. The reversal of 140864145 is 541468041.

It is not a de Polignac number, because 140864145 - 2³ = 140864137 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (140864147) 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, 11631 + ... + 20420.

It is an arithmetic number, because the mean of its divisors is an integer number (14134932).

Almost surely, 2^140864145 is an apocalyptic number.

140864145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140864145 is a deficient number, since it is larger than the sum of its proper divisors (85294767).

140864145 is a wasteful number, since it uses less digits than its factorization.

140864145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32352.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 140864145 is about 11868.6201809646. The cubic root of 140864145 is about 520.3155690555.

The spelling of 140864145 in words is "one hundred forty million, eight hundred sixty-four thousand, one hundred forty-five".