8145274 has 4 divisors (see below), whose sum is σ = 12217914. Its totient is φ = 4072636.

The previous prime is 8145253. The next prime is 8145283. The reversal of 8145274 is 4725418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7252249 + 893025 = 2693^2 + 945^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2036317 + ... + 2036320.

Almost surely, 2^8145274 is an apocalyptic number.

8145274 is a deficient number, since it is larger than the sum of its proper divisors (4072640).

8145274 is a wasteful number, since it uses less digits than its factorization.

8145274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072639.

The product of its digits is 8960, while the sum is 31.

The square root of 8145274 is about 2853.9926418966. The cubic root of 8145274 is about 201.2033617478.

The spelling of 8145274 in words is "eight million, one hundred forty-five thousand, two hundred seventy-four".