71102155 has 4 divisors (see below), whose sum is σ = 85322592. Its totient is φ = 56881720.

The previous prime is 71102153. The next prime is 71102167. The reversal of 71102155 is 55120117.

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

It is not a de Polignac number, because 71102155 - 2¹ = 71102153 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71102153) 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, 7110211 + ... + 7110220.

It is an arithmetic number, because the mean of its divisors is an integer number (21330648).

Almost surely, 2^71102155 is an apocalyptic number.

71102155 is a deficient number, since it is larger than the sum of its proper divisors (14220437).

71102155 is a wasteful number, since it uses less digits than its factorization.

71102155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14220436.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 71102155 is about 8432.2093783302. The cubic root of 71102155 is about 414.2802737805.

The spelling of 71102155 in words is "seventy-one million, one hundred two thousand, one hundred fifty-five".