513254432122 has 8 divisors (see below), whose sum is σ = 776944782900. Its totient is φ = 254272837824.

The previous prime is 513254432101. The next prime is 513254432129. The reversal of 513254432122 is 221234452315.

It can be written as a sum of positive squares in 2 ways, for example, as 511094878281 + 2159553841 = 714909^2 + 46471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×513254432122² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513254432129) 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, 1177188847 + ... + 1177189282.

Almost surely, 2^513254432122 is an apocalyptic number.

513254432122 is a deficient number, since it is larger than the sum of its proper divisors (263690350778).

513254432122 is a wasteful number, since it uses less digits than its factorization.

513254432122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354378240.

The product of its digits is 57600, while the sum is 34.

Adding to 513254432122 its reverse (221234452315), we get a palindrome (734488884437).

The spelling of 513254432122 in words is "five hundred thirteen billion, two hundred fifty-four million, four hundred thirty-two thousand, one hundred twenty-two".