118341531 has 24 divisors (see below), whose sum is σ = 213118464. Its totient is φ = 61475760.

The previous prime is 118341529. The next prime is 118341533. The reversal of 118341531 is 135143811.

118341531 is a `hidden beast` number, since 11 + 83 + 41 + 531 = 666.

It is an interprime number because it is at equal distance from previous prime (118341529) and next prime (118341533).

It is not a de Polignac number, because 118341531 - 2¹ = 118341529 is a prime.

It is a super-2 number, since 2×118341531² = 28009435918847922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118341495 and 118341504.

It is not an unprimeable number, because it can be changed into a prime (118341533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84691 + ... + 86076.

It is an arithmetic number, because the mean of its divisors is an integer number (8879936).

Almost surely, 2^118341531 is an apocalyptic number.

118341531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118341531 is a deficient number, since it is larger than the sum of its proper divisors (94776933).

118341531 is a wasteful number, since it uses less digits than its factorization.

118341531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170791 (or 170788 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 118341531 is about 10878.4893712317. The cubic root of 118341531 is about 490.9595676585.

The spelling of 118341531 in words is "one hundred eighteen million, three hundred forty-one thousand, five hundred thirty-one".