137125729 has 8 divisors (see below), whose sum is σ = 148222592. Its totient is φ = 126107280.

The previous prime is 137125727. The next prime is 137125739. The reversal of 137125729 is 927521731.

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

It is not a de Polignac number, because 137125729 - 2¹ = 137125727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137125727) 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, 15939 + ... + 22984.

It is an arithmetic number, because the mean of its divisors is an integer number (18527824).

Almost surely, 2^137125729 is an apocalyptic number.

It is an amenable number.

137125729 is a deficient number, since it is larger than the sum of its proper divisors (11096863).

137125729 is a wasteful number, since it uses less digits than its factorization.

137125729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39207.

The product of its digits is 26460, while the sum is 37.

The square root of 137125729 is about 11710.0695557285. The cubic root of 137125729 is about 515.6713261053.

The spelling of 137125729 in words is "one hundred thirty-seven million, one hundred twenty-five thousand, seven hundred twenty-nine".