8153139 has 4 divisors (see below), whose sum is σ = 10870856. Its totient is φ = 5435424.

The previous prime is 8153113. The next prime is 8153153. The reversal of 8153139 is 9313518.

It is a happy number.

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

It is not a de Polignac number, because 8153139 - 2⁷ = 8153011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8153179) 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, 1358854 + ... + 1358859.

It is an arithmetic number, because the mean of its divisors is an integer number (2717714).

Almost surely, 2^8153139 is an apocalyptic number.

8153139 is a deficient number, since it is larger than the sum of its proper divisors (2717717).

8153139 is a wasteful number, since it uses less digits than its factorization.

8153139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717716.

The product of its digits is 3240, while the sum is 30.

The square root of 8153139 is about 2855.3702036689. The cubic root of 8153139 is about 201.2681009400.

The spelling of 8153139 in words is "eight million, one hundred fifty-three thousand, one hundred thirty-nine".