137725838 has 8 divisors (see below), whose sum is σ = 208718832. Its totient is φ = 68152896.

The previous prime is 137725837. The next prime is 137725859. The reversal of 137725838 is 838527731.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137725831) 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, 354770 + ... + 355157.

It is an arithmetic number, because the mean of its divisors is an integer number (26089854).

Almost surely, 2^137725838 is an apocalyptic number.

137725838 is a deficient number, since it is larger than the sum of its proper divisors (70992994).

137725838 is an equidigital number, since it uses as much as digits as its factorization.

137725838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710026.

The product of its digits is 282240, while the sum is 44.

The square root of 137725838 is about 11735.6652133571. The cubic root of 137725838 is about 516.4224826478.

The spelling of 137725838 in words is "one hundred thirty-seven million, seven hundred twenty-five thousand, eight hundred thirty-eight".