140234417 has 8 divisors (see below), whose sum is σ = 145358976. Its totient is φ = 135199152.

The previous prime is 140234389. The next prime is 140234431. The reversal of 140234417 is 714432041.

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

It is a cyclic number.

It is not a de Polignac number, because 140234417 - 2¹⁰ = 140233393 is a prime.

It is a super-2 number, since 2×140234417² = 39331383422659778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140234447) 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, 19118 + ... + 25415.

It is an arithmetic number, because the mean of its divisors is an integer number (18169872).

Almost surely, 2^140234417 is an apocalyptic number.

It is an amenable number.

140234417 is a deficient number, since it is larger than the sum of its proper divisors (5124559).

140234417 is an equidigital number, since it uses as much as digits as its factorization.

140234417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44647.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 140234417 is about 11842.0613492753. The cubic root of 140234417 is about 519.5390602216.

Adding to 140234417 its reverse (714432041), we get a palindrome (854666458).

The spelling of 140234417 in words is "one hundred forty million, two hundred thirty-four thousand, four hundred seventeen".