8145455 has 4 divisors (see below), whose sum is σ = 9774552. Its totient is φ = 6516360.

The previous prime is 8145443. The next prime is 8145457. The reversal of 8145455 is 5545418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5545418 = 2 ⋅2772709.

It is not a de Polignac number, because 8145455 - 2²⁰ = 7096879 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 (8145457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814541 + ... + 814550.

It is an arithmetic number, because the mean of its divisors is an integer number (2443638).

Almost surely, 2^8145455 is an apocalyptic number.

8145455 is a deficient number, since it is larger than the sum of its proper divisors (1629097).

8145455 is a wasteful number, since it uses less digits than its factorization.

8145455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629096.

The product of its digits is 16000, while the sum is 32.

The square root of 8145455 is about 2854.0243516831. The cubic root of 8145455 is about 201.2048520819.

The spelling of 8145455 in words is "eight million, one hundred forty-five thousand, four hundred fifty-five".