140533217 has 8 divisors (see below), whose sum is σ = 158595840. Its totient is φ = 123351760.

The previous prime is 140533207. The next prime is 140533219. The reversal of 140533217 is 712335041.

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 140533217 - 2⁴ = 140533201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140533219) 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, 219953 + ... + 220590.

It is an arithmetic number, because the mean of its divisors is an integer number (19824480).

Almost surely, 2^140533217 is an apocalyptic number.

It is an amenable number.

140533217 is a deficient number, since it is larger than the sum of its proper divisors (18062623).

140533217 is a wasteful number, since it uses less digits than its factorization.

140533217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440583.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 140533217 is about 11854.6706828996. The cubic root of 140533217 is about 519.9077955352.

Adding to 140533217 its reverse (712335041), we get a palindrome (852868258).

The spelling of 140533217 in words is "one hundred forty million, five hundred thirty-three thousand, two hundred seventeen".