134402515 has 16 divisors (see below), whose sum is σ = 179294976. Its totient is φ = 96048000.

The previous prime is 134402509. The next prime is 134402557. The reversal of 134402515 is 515204431.

It is a happy number.

It is not a de Polignac number, because 134402515 - 2³ = 134402507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134402515.

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 15 ways as a sum of consecutive naturals, for example, 31336 + ... + 35365.

It is an arithmetic number, because the mean of its divisors is an integer number (11205936).

Almost surely, 2^134402515 is an apocalyptic number.

134402515 is a deficient number, since it is larger than the sum of its proper divisors (44892461).

134402515 is a wasteful number, since it uses less digits than its factorization.

134402515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66750.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 134402515 is about 11593.2098661242. The cubic root of 134402515 is about 512.2348610709.

Adding to 134402515 its reverse (515204431), we get a palindrome (649606946).

The spelling of 134402515 in words is "one hundred thirty-four million, four hundred two thousand, five hundred fifteen".