137449 has 8 divisors (see below), whose sum is σ = 150920. Its totient is φ = 124416.

The previous prime is 137447. The next prime is 137453. The reversal of 137449 is 944731.

It can be written as a sum of positive squares in 4 ways, for example, as 10000 + 127449 = 100^2 + 357^2 .

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

It is a 3-Lehmer number, since φ(137449) divides (137449-1)³.

It is a cyclic number.

It is not a de Polignac number, because 137449 - 2¹ = 137447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (18865).

2¹³⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

137449 is a deficient number, since it is larger than the sum of its proper divisors (13471).

137449 is a wasteful number, since it uses less digits than its factorization.

137449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its digits is 3024, while the sum is 28.

The square root of 137449 is about 370.7411495909. The cubic root of 137449 is about 51.6076236157.

The spelling of 137449 in words is "one hundred thirty-seven thousand, four hundred forty-nine".