8151634 has 4 divisors (see below), whose sum is σ = 12227454. Its totient is φ = 4075816.

The previous prime is 8151631. The next prime is 8151659. The reversal of 8151634 is 4361518.

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., 8105409 + 46225 = 2847^2 + 215^2 .

It is not an unprimeable number, because it can be changed into a prime (8151631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2037907 + ... + 2037910.

Almost surely, 2^8151634 is an apocalyptic number.

8151634 is a deficient number, since it is larger than the sum of its proper divisors (4075820).

8151634 is a wasteful number, since it uses less digits than its factorization.

8151634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075819.

The product of its digits is 2880, while the sum is 28.

The square root of 8151634 is about 2855.1066529991. The cubic root of 8151634 is about 201.2557160523.

It can be divided in two parts, 81 and 51634, that added together give a palindrome (51715).

The spelling of 8151634 in words is "eight million, one hundred fifty-one thousand, six hundred thirty-four".