137001218 has 8 divisors (see below), whose sum is σ = 205570812. Its totient is φ = 68477616.

The previous prime is 137001203. The next prime is 137001257. The reversal of 137001218 is 812100731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116143729 + 20857489 = 10777^2 + 4567^2 .

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 = 137001193 and 137001202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705 + ... + 16772.

Almost surely, 2^137001218 is an apocalyptic number.

137001218 is a deficient number, since it is larger than the sum of its proper divisors (68569594).

137001218 is a wasteful number, since it uses less digits than its factorization.

137001218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22996.

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

The square root of 137001218 is about 11704.7519409853. The cubic root of 137001218 is about 515.5152012697.

Adding to 137001218 its reverse (812100731), we get a palindrome (949101949).

The spelling of 137001218 in words is "one hundred thirty-seven million, one thousand, two hundred eighteen".