140733865 has 8 divisors (see below), whose sum is σ = 169030728. Its totient is φ = 112487040.

The previous prime is 140733851. The next prime is 140733869. The reversal of 140733865 is 568337041.

140733865 = 8388² + 8389².

140733865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 70358544 + 70375321 = 8388^2 + 8389^2 .

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

It is not a de Polignac number, because 140733865 - 2⁵ = 140733833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140733869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6012 + ... + 17821.

It is an arithmetic number, because the mean of its divisors is an integer number (21128841).

Almost surely, 2^140733865 is an apocalyptic number.

140733865 is the 8389-th centered square number.

It is an amenable number.

140733865 is a deficient number, since it is larger than the sum of its proper divisors (28296863).

140733865 is a wasteful number, since it uses less digits than its factorization.

140733865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25019.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 140733865 is about 11863.1304890404. The cubic root of 140733865 is about 520.1551127499.

The spelling of 140733865 in words is "one hundred forty million, seven hundred thirty-three thousand, eight hundred sixty-five".