118151543 has 4 divisors (see below), whose sum is σ = 118173288. Its totient is φ = 118129800.

The previous prime is 118151533. The next prime is 118151549. The reversal of 118151543 is 345151811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 118151543 - 2¹⁸ = 117889399 is a prime.

It is a super-2 number, since 2×118151543² = 27919574226561698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118151549) 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, 5105 + ... + 16197.

It is an arithmetic number, because the mean of its divisors is an integer number (29543322).

Almost surely, 2^118151543 is an apocalyptic number.

118151543 is a deficient number, since it is larger than the sum of its proper divisors (21745).

118151543 is a wasteful number, since it uses less digits than its factorization.

118151543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744.

The product of its digits is 2400, while the sum is 29.

The square root of 118151543 is about 10869.7535850635. The cubic root of 118151543 is about 490.6966946386.

The spelling of 118151543 in words is "one hundred eighteen million, one hundred fifty-one thousand, five hundred forty-three".