140550817 has 12 divisors (see below), whose sum is σ = 155686608. Its totient is φ = 126783800.

The previous prime is 140550799. The next prime is 140550841. The reversal of 140550817 is 718055041.

It is not a de Polignac number, because 140550817 - 2⁷ = 140550689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140550017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11418 + ... + 20284.

It is an arithmetic number, because the mean of its divisors is an integer number (12973884).

Almost surely, 2^140550817 is an apocalyptic number.

It is an amenable number.

140550817 is a deficient number, since it is larger than the sum of its proper divisors (15135791).

140550817 is a wasteful number, since it uses less digits than its factorization.

140550817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020 (or 9009 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 140550817 is about 11855.4129831061. The cubic root of 140550817 is about 519.9294985780.

The spelling of 140550817 in words is "one hundred forty million, five hundred fifty thousand, eight hundred seventeen".