134215513 has 4 divisors (see below), whose sum is σ = 137336848. Its totient is φ = 131094180.

The previous prime is 134215507. The next prime is 134215553. The reversal of 134215513 is 315512431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134215513 - 2⁹ = 134215001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134215553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560603 + ... + 1560688.

It is an arithmetic number, because the mean of its divisors is an integer number (34334212).

Almost surely, 2^134215513 is an apocalyptic number.

It is an amenable number.

134215513 is a deficient number, since it is larger than the sum of its proper divisors (3121335).

134215513 is an equidigital number, since it uses as much as digits as its factorization.

134215513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121334.

The product of its digits is 1800, while the sum is 25.

The square root of 134215513 is about 11585.1419067701. The cubic root of 134215513 is about 511.9971834664.

Adding to 134215513 its reverse (315512431), we get a palindrome (449727944).

The spelling of 134215513 in words is "one hundred thirty-four million, two hundred fifteen thousand, five hundred thirteen".