140197215 has 32 divisors (see below), whose sum is σ = 241430976. Its totient is φ = 69212160.

The previous prime is 140197199. The next prime is 140197237. The reversal of 140197215 is 512791041.

It is not a de Polignac number, because 140197215 - 2⁴ = 140197199 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 31 ways as a sum of consecutive naturals, for example, 11049 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (7544718).

Almost surely, 2^140197215 is an apocalyptic number.

140197215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140197215 is a deficient number, since it is larger than the sum of its proper divisors (101233761).

140197215 is a wasteful number, since it uses less digits than its factorization.

140197215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 140197215 is about 11840.4904881512. The cubic root of 140197215 is about 519.4931142931.

The spelling of 140197215 in words is "one hundred forty million, one hundred ninety-seven thousand, two hundred fifteen".