513154223653 has 8 divisors (see below), whose sum is σ = 514926473600. Its totient is φ = 511384717008.

The previous prime is 513154223633. The next prime is 513154223671. The reversal of 513154223653 is 356322451315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513154223653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513154223633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310713 + ... + 1059646.

It is an arithmetic number, because the mean of its divisors is an integer number (64365809200).

Almost surely, 2^513154223653 is an apocalyptic number.

It is an amenable number.

513154223653 is a deficient number, since it is larger than the sum of its proper divisors (1772249947).

513154223653 is a wasteful number, since it uses less digits than its factorization.

513154223653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371651.

The product of its digits is 324000, while the sum is 40.

Adding to 513154223653 its reverse (356322451315), we get a palindrome (869476674968).

The spelling of 513154223653 in words is "five hundred thirteen billion, one hundred fifty-four million, two hundred twenty-three thousand, six hundred fifty-three".