71162123 has 2 divisors, whose sum is σ = 71162124. Its totient is φ = 71162122.

The previous prime is 71162111. The next prime is 71162129. The reversal of 71162123 is 32126117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71162123 - 2¹² = 71158027 is a prime.

It is not a weakly prime, because it can be changed into another prime (71162129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35581061 + 35581062.

It is an arithmetic number, because the mean of its divisors is an integer number (35581062).

Almost surely, 2^71162123 is an apocalyptic number.

71162123 is a deficient number, since it is larger than the sum of its proper divisors (1).

71162123 is an equidigital number, since it uses as much as digits as its factorization.

71162123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 71162123 is about 8435.7645178134. The cubic root of 71162123 is about 414.3967099060.

The spelling of 71162123 in words is "seventy-one million, one hundred sixty-two thousand, one hundred twenty-three".