140490215 has 8 divisors (see below), whose sum is σ = 168798048. Its totient is φ = 112252320.

The previous prime is 140490197. The next prime is 140490263. The reversal of 140490215 is 512094041.

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

It is not a de Polignac number, because 140490215 - 2¹⁶ = 140424679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12956 + ... + 21185.

It is an arithmetic number, because the mean of its divisors is an integer number (21099756).

Almost surely, 2^140490215 is an apocalyptic number.

140490215 is a deficient number, since it is larger than the sum of its proper divisors (28307833).

140490215 is an equidigital number, since it uses as much as digits as its factorization.

140490215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34969.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 140490215 is about 11852.8568286300. The cubic root of 140490215 is about 519.8547609663.

It can be divided in two parts, 1404 and 90215, that added together give a palindrome (91619).

The spelling of 140490215 in words is "one hundred forty million, four hundred ninety thousand, two hundred fifteen".