13315455 has 32 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 6963840.

The previous prime is 13315453. The next prime is 13315457. The reversal of 13315455 is 55451331.

13315455 = 475² + 476² + ... + 527².

It is an interprime number because it is at equal distance from previous prime (13315453) and next prime (13315457).

It is not a de Polignac number, because 13315455 - 2¹ = 13315453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6225 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^13315455 is an apocalyptic number.

13315455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13315455 is a deficient number, since it is larger than the sum of its proper divisors (10816065).

13315455 is a wasteful number, since it uses less digits than its factorization.

13315455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 1922 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 13315455 is about 3649.0348038899. The cubic root of 13315455 is about 237.0201873527.

Adding to 13315455 its reverse (55451331), we get a palindrome (68766786).

It can be divided in two parts, 1331 and 5455, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 13315455 in words is "thirteen million, three hundred fifteen thousand, four hundred fifty-five".