140134169 has 12 divisors (see below), whose sum is σ = 163551924. Its totient is φ = 119718144.

The previous prime is 140134157. The next prime is 140134201. The reversal of 140134169 is 961431041.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 138956944 = 1085^2 + 11788^2 .

It is not a de Polignac number, because 140134169 - 2⁴ = 140134153 is a prime.

It is a super-2 number, since 2×140134169² = 39275170642641122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140134769) 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, 10769 + ... + 19905.

It is an arithmetic number, because the mean of its divisors is an integer number (13629327).

Almost surely, 2^140134169 is an apocalyptic number.

It is an amenable number.

140134169 is a deficient number, since it is larger than the sum of its proper divisors (23417755).

140134169 is an equidigital number, since it uses as much as digits as its factorization.

140134169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 140134169 is about 11837.8278835266. The cubic root of 140134169 is about 519.4152314489.

The spelling of 140134169 in words is "one hundred forty million, one hundred thirty-four thousand, one hundred sixty-nine".