134251515015 has 16 divisors (see below), whose sum is σ = 214808092128. Its totient is φ = 71598918656.

The previous prime is 134251514921. The next prime is 134251515019. The reversal of 134251515015 is 510515152431.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134251515015 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134251515019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616879 + ... + 805631.

It is an arithmetic number, because the mean of its divisors is an integer number (13425505758).

Almost surely, 2^134251515015 is an apocalyptic number.

134251515015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

134251515015 is a deficient number, since it is larger than the sum of its proper divisors (80556577113).

134251515015 is a wasteful number, since it uses less digits than its factorization.

134251515015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236178.

The product of its (nonzero) digits is 15000, while the sum is 33.

Adding to 134251515015 its reverse (510515152431), we get a palindrome (644766667446).

The spelling of 134251515015 in words is "one hundred thirty-four billion, two hundred fifty-one million, five hundred fifteen thousand, fifteen".