134640234 has 12 divisors (see below), whose sum is σ = 291720546. Its totient is φ = 44880072.

The previous prime is 134640197. The next prime is 134640263. The reversal of 134640234 is 432046431.

134640234 is a `hidden beast` number, since 13 + 4 + 640 + 2 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100942209 + 33698025 = 10047^2 + 5805^2 .

It is a super-2 number, since 2×134640234² = 36255985223149512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134640198 and 134640207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3739989 + ... + 3740024.

Almost surely, 2^134640234 is an apocalyptic number.

134640234 is an abundant number, since it is smaller than the sum of its proper divisors (157080312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134640234 is a wasteful number, since it uses less digits than its factorization.

134640234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480021 (or 7480018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 134640234 is about 11603.4578466938. The cubic root of 134640234 is about 512.5366814118.

Adding to 134640234 its reverse (432046431), we get a palindrome (566686665).

The spelling of 134640234 in words is "one hundred thirty-four million, six hundred forty thousand, two hundred thirty-four".