137727725 has 12 divisors (see below), whose sum is σ = 172381824. Its totient is φ = 109150320.

The previous prime is 137727721. The next prime is 137727743. The reversal of 137727725 is 527727731.

It is a happy number.

It is not a de Polignac number, because 137727725 - 2² = 137727721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137727721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23069 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (14365152).

Almost surely, 2^137727725 is an apocalyptic number.

It is an amenable number.

137727725 is a deficient number, since it is larger than the sum of its proper divisors (34654099).

137727725 is a wasteful number, since it uses less digits than its factorization.

137727725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51604 (or 51599 counting only the distinct ones).

The product of its digits is 144060, while the sum is 41.

The square root of 137727725 is about 11735.7456090357. The cubic root of 137727725 is about 516.4248411614.

The spelling of 137727725 in words is "one hundred thirty-seven million, seven hundred twenty-seven thousand, seven hundred twenty-five".