137341221 has 8 divisors (see below), whose sum is σ = 183207840. Its totient is φ = 91517712.

The previous prime is 137341219. The next prime is 137341261. The reversal of 137341221 is 122143731.

It is a happy number.

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

It is not a de Polignac number, because 137341221 - 2¹ = 137341219 is a prime.

It is a super-2 number, since 2×137341221² = 37725221971541682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137341191 and 137341200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137341261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415 + ... + 16748.

It is an arithmetic number, because the mean of its divisors is an integer number (22900980).

Almost surely, 2^137341221 is an apocalyptic number.

It is an amenable number.

137341221 is a deficient number, since it is larger than the sum of its proper divisors (45866619).

137341221 is a wasteful number, since it uses less digits than its factorization.

137341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21555.

The product of its digits is 1008, while the sum is 24.

The square root of 137341221 is about 11719.2670845919. The cubic root of 137341221 is about 515.9413092011.

Adding to 137341221 its reverse (122143731), we get a palindrome (259484952).

The spelling of 137341221 in words is "one hundred thirty-seven million, three hundred forty-one thousand, two hundred twenty-one".