130140434 has 4 divisors (see below), whose sum is σ = 195210654. Its totient is φ = 65070216.

The previous prime is 130140421. The next prime is 130140469. The reversal of 130140434 is 434041031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434041031 = 11117 ⋅39043.

It can be written as a sum of positive squares in only one way, i.e., 128029225 + 2111209 = 11315^2 + 1453^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32535107 + ... + 32535110.

Almost surely, 2^130140434 is an apocalyptic number.

130140434 is a deficient number, since it is larger than the sum of its proper divisors (65070220).

130140434 is an equidigital number, since it uses as much as digits as its factorization.

130140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65070219.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130140434 is about 11407.9110270023. The cubic root of 130140434 is about 506.7620491210.

Adding to 130140434 its reverse (434041031), we get a palindrome (564181465).

The spelling of 130140434 in words is "one hundred thirty million, one hundred forty thousand, four hundred thirty-four".