13154025481 has 3 divisors (see below), whose sum is σ = 13154140173. Its totient is φ = 13153910790.

The previous prime is 13154025463. The next prime is 13154025529. The reversal of 13154025481 is 18452045131.

The square root of 13154025481 is 114691.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 13154025481 - 2¹⁷ = 13153894409 is a prime.

It is a super-2 number, since 2×13154025481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13154025461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 57346 + ... + 172036.

It is an arithmetic number, because the mean of its divisors is an integer number (4384713391).

Almost surely, 2^13154025481 is an apocalyptic number.

13154025481 is the 114691-st square number.

13154025481 is the 57346-th centered octagonal number.

It is an amenable number.

13154025481 is a deficient number, since it is larger than the sum of its proper divisors (114692).

13154025481 is an frugal number, since it uses more digits than its factorization.

13154025481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229382 (or 114691 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 13154025481 in words is "thirteen billion, one hundred fifty-four million, twenty-five thousand, four hundred eighty-one".