8101155 has 16 divisors (see below), whose sum is σ = 13238784. Its totient is φ = 4228320.

The previous prime is 8101151. The next prime is 8101183. The reversal of 8101155 is 5511018.

It is not a de Polignac number, because 8101155 - 2² = 8101151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8101151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5041 + ... + 6450.

It is an arithmetic number, because the mean of its divisors is an integer number (827424).

Almost surely, 2^8101155 is an apocalyptic number.

8101155 is a deficient number, since it is larger than the sum of its proper divisors (5137629).

8101155 is a wasteful number, since it uses less digits than its factorization.

8101155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11546.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 8101155 is about 2846.2527997351. The cubic root of 8101155 is about 200.8394301890.

It can be divided in two parts, 8101 and 155, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 8101155 in words is "eight million, one hundred one thousand, one hundred fifty-five".