140434145 has 8 divisors (see below), whose sum is σ = 169595304. Its totient is φ = 111631104.

The previous prime is 140434121. The next prime is 140434169. The reversal of 140434145 is 541434041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140434121) and next prime (140434169).

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 140398801 = 188^2 + 11849^2 .

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 140434145 - 2⁶ = 140434081 is a prime.

It is a Duffinian 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, 88664 + ... + 90233.

It is an arithmetic number, because the mean of its divisors is an integer number (21199413).

Almost surely, 2^140434145 is an apocalyptic number.

It is an amenable number.

140434145 is a deficient number, since it is larger than the sum of its proper divisors (29161159).

140434145 is a wasteful number, since it uses less digits than its factorization.

140434145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179059.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140434145 is about 11850.4913400247. The cubic root of 140434145 is about 519.7855933140.

Adding to 140434145 its reverse (541434041), we get a palindrome (681868186).

The spelling of 140434145 in words is "one hundred forty million, four hundred thirty-four thousand, one hundred forty-five".