134640515 has 8 divisors (see below), whose sum is σ = 165509568. Its totient is φ = 105085120.

The previous prime is 134640497. The next prime is 134640523. The reversal of 134640515 is 515046431.

It is a happy number.

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

It is not a de Polignac number, because 134640515 - 2¹² = 134636419 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 328187 + ... + 328596.

It is an arithmetic number, because the mean of its divisors is an integer number (20688696).

Almost surely, 2^134640515 is an apocalyptic number.

134640515 is a deficient number, since it is larger than the sum of its proper divisors (30869053).

134640515 is an equidigital number, since it uses as much as digits as its factorization.

134640515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656829.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 134640515 is about 11603.4699551470. The cubic root of 134640515 is about 512.5370379736.

Adding to 134640515 its reverse (515046431), we get a palindrome (649686946).

The spelling of 134640515 in words is "one hundred thirty-four million, six hundred forty thousand, five hundred fifteen".