140449215 has 16 divisors (see below), whose sum is σ = 225599328. Its totient is φ = 74612736.

The previous prime is 140449187. The next prime is 140449229. The reversal of 140449215 is 512944041.

It is not a de Polignac number, because 140449215 - 2¹⁸ = 140187071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14362 + ... + 22071.

It is an arithmetic number, because the mean of its divisors is an integer number (14099958).

Almost surely, 2^140449215 is an apocalyptic number.

140449215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140449215 is a deficient number, since it is larger than the sum of its proper divisors (85150113).

140449215 is a wasteful number, since it uses less digits than its factorization.

140449215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36698.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 140449215 is about 11851.1271615826. The cubic root of 140449215 is about 519.8041853943.

The spelling of 140449215 in words is "one hundred forty million, four hundred forty-nine thousand, two hundred fifteen".