118145071 has 4 divisors (see below), whose sum is σ = 128885544. Its totient is φ = 107404600.

The previous prime is 118145057. The next prime is 118145077. The reversal of 118145071 is 170541811.

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

It is a cyclic number.

It is not a de Polignac number, because 118145071 - 2²³ = 109756463 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 (118145077) 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, 5370220 + ... + 5370241.

It is an arithmetic number, because the mean of its divisors is an integer number (32221386).

Almost surely, 2^118145071 is an apocalyptic number.

118145071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118145071 is a deficient number, since it is larger than the sum of its proper divisors (10740473).

118145071 is a wasteful number, since it uses less digits than its factorization.

118145071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740472.

The product of its (nonzero) digits is 1120, while the sum is 28.

The square root of 118145071 is about 10869.4558741457. The cubic root of 118145071 is about 490.6877348262.

Adding to 118145071 its reverse (170541811), we get a palindrome (288686882).

The spelling of 118145071 in words is "one hundred eighteen million, one hundred forty-five thousand, seventy-one".