140533215 has 32 divisors (see below), whose sum is σ = 243102720. Its totient is φ = 69081984.

The previous prime is 140533207. The next prime is 140533219. The reversal of 140533215 is 512335041.

It is not a de Polignac number, because 140533215 - 2³ = 140533207 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 3882 + ... + 17208.

It is an arithmetic number, because the mean of its divisors is an integer number (7596960).

Almost surely, 2^140533215 is an apocalyptic number.

140533215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140533215 is a deficient number, since it is larger than the sum of its proper divisors (102569505).

140533215 is a wasteful number, since it uses less digits than its factorization.

140533215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 140533215 is about 11854.6705985447. The cubic root of 140533215 is about 519.9077930689.

Adding to 140533215 its reverse (512335041), we get a palindrome (652868256).

The spelling of 140533215 in words is "one hundred forty million, five hundred thirty-three thousand, two hundred fifteen".