137030218 has 8 divisors (see below), whose sum is σ = 221356548. Its totient is φ = 63244704.

The previous prime is 137030171. The next prime is 137030219. The reversal of 137030218 is 812030731.

It can be written as a sum of positive squares in 2 ways, for example, as 134026929 + 3003289 = 11577^2 + 1733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 137030192 and 137030201.

It is not an unprimeable number, because it can be changed into a prime (137030219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2635171 + ... + 2635222.

Almost surely, 2^137030218 is an apocalyptic number.

137030218 is a deficient number, since it is larger than the sum of its proper divisors (84326330).

137030218 is a wasteful number, since it uses less digits than its factorization.

137030218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270408.

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

The square root of 137030218 is about 11705.9906885321. The cubic root of 137030218 is about 515.5515729320.

Adding to 137030218 its reverse (812030731), we get a palindrome (949060949).

The spelling of 137030218 in words is "one hundred thirty-seven million, thirty thousand, two hundred eighteen".