254131520513 has 16 divisors (see below), whose sum is σ = 279566999040. Its totient is φ = 229572693504.

The previous prime is 254131520509. The next prime is 254131520519. The reversal of 254131520513 is 315025131452.

It is a cyclic number.

It is not a de Polignac number, because 254131520513 - 2² = 254131520509 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 254131520513.

It is not an unprimeable number, because it can be changed into a prime (254131520519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571856 + ... + 913937.

It is an arithmetic number, because the mean of its divisors is an integer number (17472937440).

Almost surely, 2^254131520513 is an apocalyptic number.

It is an amenable number.

254131520513 is a deficient number, since it is larger than the sum of its proper divisors (25435478527).

254131520513 is a wasteful number, since it uses less digits than its factorization.

254131520513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486088.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 254131520513 its reverse (315025131452), we get a palindrome (569156651965).

The spelling of 254131520513 in words is "two hundred fifty-four billion, one hundred thirty-one million, five hundred twenty thousand, five hundred thirteen".