13452534421 has 2 divisors, whose sum is σ = 13452534422. Its totient is φ = 13452534420.

The previous prime is 13452534383. The next prime is 13452534463. The reversal of 13452534421 is 12443525431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7613435025 + 5839099396 = 87255^2 + 76414^2 .

It is a cyclic number.

It is not a de Polignac number, because 13452534421 - 2¹⁵ = 13452501653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13452534521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6726267210 + 6726267211.

It is an arithmetic number, because the mean of its divisors is an integer number (6726267211).

Almost surely, 2^13452534421 is an apocalyptic number.

It is an amenable number.

13452534421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13452534421 is an equidigital number, since it uses as much as digits as its factorization.

13452534421 is an evil number, because the sum of its binary digits is even.

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

The spelling of 13452534421 in words is "thirteen billion, four hundred fifty-two million, five hundred thirty-four thousand, four hundred twenty-one".