137608372025 has 6 divisors (see below), whose sum is σ = 170634381342. Its totient is φ = 110086697600.

The previous prime is 137608372009. The next prime is 137608372079. The reversal of 137608372025 is 520273806731.

It can be written as a sum of positive squares in 3 ways, for example, as 6184721449 + 131423650576 = 78643^2 + 362524^2 .

It is not a de Polignac number, because 137608372025 - 2⁴ = 137608372009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2752167416 + ... + 2752167465.

It is an arithmetic number, because the mean of its divisors is an integer number (28439063557).

Almost surely, 2^137608372025 is an apocalyptic number.

It is an amenable number.

137608372025 is a deficient number, since it is larger than the sum of its proper divisors (33026009317).

137608372025 is an equidigital number, since it uses as much as digits as its factorization.

137608372025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504334891 (or 5504334886 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 137608372025 in words is "one hundred thirty-seven billion, six hundred eight million, three hundred seventy-two thousand, twenty-five".