140585217 has 8 divisors (see below), whose sum is σ = 193493760. Its totient is φ = 90700080.

The previous prime is 140585197. The next prime is 140585231. The reversal of 140585217 is 712585041.

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

It is not a de Polignac number, because 140585217 - 2²² = 136390913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140585287) 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, 755742 + ... + 755927.

It is an arithmetic number, because the mean of its divisors is an integer number (24186720).

Almost surely, 2^140585217 is an apocalyptic number.

It is an amenable number.

140585217 is a deficient number, since it is larger than the sum of its proper divisors (52908543).

140585217 is a wasteful number, since it uses less digits than its factorization.

140585217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511703.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 140585217 is about 11856.8637084180. The cubic root of 140585217 is about 519.9719129307.

The spelling of 140585217 in words is "one hundred forty million, five hundred eighty-five thousand, two hundred seventeen".