213505469453 has 8 divisors (see below), whose sum is σ = 214683396096. Its totient is φ = 212328169200.

The previous prime is 213505469447. The next prime is 213505469459. The reversal of 213505469453 is 354964505312.

It is an interprime number because it is at equal distance from previous prime (213505469447) and next prime (213505469459).

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

It is a cyclic number.

It is not a de Polignac number, because 213505469453 - 2²² = 213501275149 is a prime.

It is a super-2 number, since 2×213505469453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213505469398 and 213505469407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213505469459) 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, 535388 + ... + 844778.

It is an arithmetic number, because the mean of its divisors is an integer number (26835424512).

Almost surely, 2^213505469453 is an apocalyptic number.

It is an amenable number.

213505469453 is a deficient number, since it is larger than the sum of its proper divisors (1177926643).

213505469453 is a wasteful number, since it uses less digits than its factorization.

213505469453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313195.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 213505469453 in words is "two hundred thirteen billion, five hundred five million, four hundred sixty-nine thousand, four hundred fifty-three".