137302018 has 36 divisors (see below), whose sum is σ = 252916182. Its totient is φ = 55732320.

The previous prime is 137301953. The next prime is 137302021. The reversal of 137302018 is 810203731.

It can be written as a sum of positive squares in only one way, i.e., 110397049 + 26904969 = 10507^2 + 5187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137301983 and 137302001.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33438 + ... + 37318.

Almost surely, 2^137302018 is an apocalyptic number.

137302018 is a deficient number, since it is larger than the sum of its proper divisors (115614164).

137302018 is a wasteful number, since it uses less digits than its factorization.

137302018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 137302018 is about 11717.5943776869. The cubic root of 137302018 is about 515.8922140307.

Adding to 137302018 its reverse (810203731), we get a palindrome (947505749).

The spelling of 137302018 in words is "one hundred thirty-seven million, three hundred two thousand, eighteen".