513534122140 has 24 divisors (see below), whose sum is σ = 1161377169120. Its totient is φ = 189612598848.

The previous prime is 513534122137. The next prime is 513534122147. The reversal of 513534122140 is 41221435315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513534122147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987565360 + ... + 987565879.

It is an arithmetic number, because the mean of its divisors is an integer number (48390715380).

Almost surely, 2^513534122140 is an apocalyptic number.

It is an amenable number.

513534122140 is an abundant number, since it is smaller than the sum of its proper divisors (647843046980).

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

513534122140 is a wasteful number, since it uses less digits than its factorization.

513534122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975131261 (or 1975131259 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 513534122140 its reverse (41221435315), we get a palindrome (554755557455).

The spelling of 513534122140 in words is "five hundred thirteen billion, five hundred thirty-four million, one hundred twenty-two thousand, one hundred forty".