8156147 has 2 divisors, whose sum is σ = 8156148. Its totient is φ = 8156146.

The previous prime is 8156129. The next prime is 8156153. The reversal of 8156147 is 7416518.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8156147 - 2²⁰ = 7107571 is a prime.

It is a Chen prime.

It is equal to p₅₄₉₅₅₄ and since 8156147 and 549554 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 14.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (8156167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4078073 + 4078074.

It is an arithmetic number, because the mean of its divisors is an integer number (4078074).

Almost surely, 2^8156147 is an apocalyptic number.

8156147 is a deficient number, since it is larger than the sum of its proper divisors (1).

8156147 is an equidigital number, since it uses as much as digits as its factorization.

8156147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 8156147 is about 2855.8968818919. The cubic root of 8156147 is about 201.2928496905.

The spelling of 8156147 in words is "eight million, one hundred fifty-six thousand, one hundred forty-seven".