134404515 has 48 divisors (see below), whose sum is σ = 276127488. Its totient is φ = 61438176.

The previous prime is 134404511. The next prime is 134404549. The reversal of 134404515 is 515404431.

It is a happy number.

It is not a de Polignac number, because 134404515 - 2² = 134404511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (134404511) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 604 + ... + 16406.

It is an arithmetic number, because the mean of its divisors is an integer number (5752656).

Almost surely, 2^134404515 is an apocalyptic number.

134404515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

134404515 is an abundant number, since it is smaller than the sum of its proper divisors (141722973).

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

134404515 is an equidigital number, since it uses as much as digits as its factorization.

134404515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15830 (or 15818 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 134404515 is about 11593.2961231912. The cubic root of 134404515 is about 512.2374018583.

Adding to 134404515 its reverse (515404431), we get a palindrome (649808946).

It can be divided in two parts, 13440 and 4515, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 134404515 in words is "one hundred thirty-four million, four hundred four thousand, five hundred fifteen".