8145251 has 4 divisors (see below), whose sum is σ = 8155104. Its totient is φ = 8135400.

The previous prime is 8145239. The next prime is 8145253. The reversal of 8145251 is 1525418.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8145251 is a prime.

It is a super-2 number, since 2×8145251² = 132690227706002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8145251.

It is not an unprimeable number, because it can be changed into a prime (8145253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (2038776).

Almost surely, 2^8145251 is an apocalyptic number.

8145251 is a deficient number, since it is larger than the sum of its proper divisors (9853).

8145251 is an equidigital number, since it uses as much as digits as its factorization.

8145251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852.

The product of its digits is 1600, while the sum is 26.

The square root of 8145251 is about 2853.9886124510. The cubic root of 8145251 is about 201.2031723668.

The spelling of 8145251 in words is "eight million, one hundred forty-five thousand, two hundred fifty-one".