118272031 has 2 divisors, whose sum is σ = 118272032. Its totient is φ = 118272030.

The previous prime is 118272029. The next prime is 118272047. The reversal of 118272031 is 130272811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118272031 - 2¹ = 118272029 is a prime.

It is a super-2 number, since 2×118272031² = 27976546633729922, which contains 22 as substring.

Together with 118272029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 118271987 and 118272005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118272001) 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, 59136015 + 59136016.

It is an arithmetic number, because the mean of its divisors is an integer number (59136016).

Almost surely, 2^118272031 is an apocalyptic number.

118272031 is a deficient number, since it is larger than the sum of its proper divisors (1).

118272031 is an equidigital number, since it uses as much as digits as its factorization.

118272031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 118272031 is about 10875.2945247474. The cubic root of 118272031 is about 490.8634380593.

The spelling of 118272031 in words is "one hundred eighteen million, two hundred seventy-two thousand, thirty-one".