8156101 has 4 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 8017804.

The previous prime is 8156081. The next prime is 8156129. The reversal of 8156101 is 1016518.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1016518 = 2 ⋅508259.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8156101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8156501) 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, 69061 + ... + 69178.

It is an arithmetic number, because the mean of its divisors is an integer number (2073600).

Almost surely, 2^8156101 is an apocalyptic number.

It is an amenable number.

8156101 is a deficient number, since it is larger than the sum of its proper divisors (138299).

8156101 is a wasteful number, since it uses less digits than its factorization.

8156101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138298.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 8156101 is about 2855.8888283685. Note that the first 4 decimals coincide. The cubic root of 8156101 is about 201.2924712647.

The spelling of 8156101 in words is "eight million, one hundred fifty-six thousand, one hundred one".