131207018 has 16 divisors (see below), whose sum is σ = 202188096. Its totient is φ = 63823200.

The previous prime is 131206993. The next prime is 131207023. The reversal of 131207018 is 810702131.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131206984 and 131207002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19718 + ... + 25518.

It is an arithmetic number, because the mean of its divisors is an integer number (12636756).

Almost surely, 2^131207018 is an apocalyptic number.

131207018 is a deficient number, since it is larger than the sum of its proper divisors (70981078).

131207018 is a wasteful number, since it uses less digits than its factorization.

131207018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 131207018 is about 11454.5631955130. The cubic root of 131207018 is about 508.1426971148.

Adding to 131207018 its reverse (810702131), we get a palindrome (941909149).

The spelling of 131207018 in words is "one hundred thirty-one million, two hundred seven thousand, eighteen".