140568417 has 12 divisors (see below), whose sum is σ = 221501904. Its totient is φ = 85192920.

The previous prime is 140568391. The next prime is 140568437. The reversal of 140568417 is 714865041.

It is a happy number.

It is not a de Polignac number, because 140568417 - 2¹⁴ = 140552033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140568437) 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, 709843 + ... + 710040.

It is an arithmetic number, because the mean of its divisors is an integer number (18458492).

Almost surely, 2^140568417 is an apocalyptic number.

It is an amenable number.

140568417 is a deficient number, since it is larger than the sum of its proper divisors (80933487).

140568417 is a wasteful number, since it uses less digits than its factorization.

140568417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419900 (or 1419897 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 140568417 is about 11856.1552368380. The cubic root of 140568417 is about 519.9511998090.

The spelling of 140568417 in words is "one hundred forty million, five hundred sixty-eight thousand, four hundred seventeen".