118574531 has 2 divisors, whose sum is σ = 118574532. Its totient is φ = 118574530.

The previous prime is 118574503. The next prime is 118574537. The reversal of 118574531 is 135475811.

It is a strong prime.

It is an emirp because it is prime and its reverse (135475811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118574531 is a prime.

It is a super-2 number, since 2×118574531² = 28119838803739922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118574491 and 118574500.

It is not a weakly prime, because it can be changed into another prime (118574537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59287265 + 59287266.

It is an arithmetic number, because the mean of its divisors is an integer number (59287266).

Almost surely, 2^118574531 is an apocalyptic number.

118574531 is a deficient number, since it is larger than the sum of its proper divisors (1).

118574531 is an equidigital number, since it uses as much as digits as its factorization.

118574531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 118574531 is about 10889.1933126380. The cubic root of 118574531 is about 491.2815695363.

The spelling of 118574531 in words is "one hundred eighteen million, five hundred seventy-four thousand, five hundred thirty-one".