137725797 has 16 divisors (see below), whose sum is σ = 200544768. Its totient is φ = 83380080.

The previous prime is 137725793. The next prime is 137725807. The reversal of 137725797 is 797527731.

It is not a de Polignac number, because 137725797 - 2² = 137725793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137725793) 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 15 ways as a sum of consecutive naturals, for example, 41398 + ... + 44600.

It is an arithmetic number, because the mean of its divisors is an integer number (12534048).

Almost surely, 2^137725797 is an apocalyptic number.

It is an amenable number.

137725797 is a deficient number, since it is larger than the sum of its proper divisors (62818971).

137725797 is a wasteful number, since it uses less digits than its factorization.

137725797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its digits is 648270, while the sum is 48.

The square root of 137725797 is about 11735.6634665450. The cubic root of 137725797 is about 516.4224314027.

The spelling of 137725797 in words is "one hundred thirty-seven million, seven hundred twenty-five thousand, seven hundred ninety-seven".