137596221 has 12 divisors (see below), whose sum is σ = 227143072. Its totient is φ = 78626376.

The previous prime is 137596219. The next prime is 137596231. The reversal of 137596221 is 122695731.

137596221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137596221 - 2¹ = 137596219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137596211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1091971 + ... + 1092096.

Almost surely, 2^137596221 is an apocalyptic number.

It is an amenable number.

137596221 is a deficient number, since it is larger than the sum of its proper divisors (89546851).

137596221 is a wasteful number, since it uses less digits than its factorization.

137596221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184080 (or 2184077 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 137596221 is about 11730.1415592481. The cubic root of 137596221 is about 516.2604260490.

The spelling of 137596221 in words is "one hundred thirty-seven million, five hundred ninety-six thousand, two hundred twenty-one".