137449293 has 4 divisors (see below), whose sum is σ = 183265728. Its totient is φ = 91632860.

The previous prime is 137449271. The next prime is 137449297. The reversal of 137449293 is 392944731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137449293 - 2⁶ = 137449229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137449297) 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 3 ways as a sum of consecutive naturals, for example, 22908213 + ... + 22908218.

It is an arithmetic number, because the mean of its divisors is an integer number (45816432).

Almost surely, 2^137449293 is an apocalyptic number.

It is an amenable number.

137449293 is a deficient number, since it is larger than the sum of its proper divisors (45816435).

137449293 is an equidigital number, since it uses as much as digits as its factorization.

137449293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45816434.

The product of its digits is 163296, while the sum is 42.

The square root of 137449293 is about 11723.8770464382. The cubic root of 137449293 is about 516.0766028633.

The spelling of 137449293 in words is "one hundred thirty-seven million, four hundred forty-nine thousand, two hundred ninety-three".