131148018 has 16 divisors (see below), whose sum is σ = 291440160. Its totient is φ = 43715988.

The previous prime is 131147993. The next prime is 131148067. The reversal of 131148018 is 810841131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131147982 and 131148000.

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, 1214280 + ... + 1214387.

It is an arithmetic number, because the mean of its divisors is an integer number (18215010).

Almost surely, 2^131148018 is an apocalyptic number.

131148018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131148018 is an abundant number, since it is smaller than the sum of its proper divisors (160292142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131148018 is a wasteful number, since it uses less digits than its factorization.

131148018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428678 (or 2428672 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 131148018 is about 11451.9875130913. The cubic root of 131148018 is about 508.0665200056.

Adding to 131148018 its reverse (810841131), we get a palindrome (941989149).

The spelling of 131148018 in words is "one hundred thirty-one million, one hundred forty-eight thousand, eighteen".