137144649 has 4 divisors (see below), whose sum is σ = 182859536. Its totient is φ = 91429764.

The previous prime is 137144621. The next prime is 137144663. The reversal of 137144649 is 946441731.

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 not a de Polignac number, because 137144649 - 2⁵ = 137144617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137144669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22857439 + ... + 22857444.

It is an arithmetic number, because the mean of its divisors is an integer number (45714884).

Almost surely, 2^137144649 is an apocalyptic number.

It is an amenable number.

137144649 is a deficient number, since it is larger than the sum of its proper divisors (45714887).

137144649 is an equidigital number, since it uses as much as digits as its factorization.

137144649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45714886.

The product of its digits is 72576, while the sum is 39.

The square root of 137144649 is about 11710.8773795988. The cubic root of 137144649 is about 515.6950416955.

The spelling of 137144649 in words is "one hundred thirty-seven million, one hundred forty-four thousand, six hundred forty-nine".