137861973241 has 4 divisors (see below), whose sum is σ = 138044090212. Its totient is φ = 137679856272.

The previous prime is 137861973211. The next prime is 137861973283. The reversal of 137861973241 is 142379168731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142379168731 = 308809 ⋅461059.

It can be written as a sum of positive squares in 2 ways, for example, as 79794950400 + 58067022841 = 282480^2 + 240971^2 .

It is a cyclic number.

It is not a de Polignac number, because 137861973241 - 2⁵ = 137861973209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137861973211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91057350 + ... + 91058863.

It is an arithmetic number, because the mean of its divisors is an integer number (34511022553).

Almost surely, 2^137861973241 is an apocalyptic number.

It is an amenable number.

137861973241 is a deficient number, since it is larger than the sum of its proper divisors (182116971).

137861973241 is an equidigital number, since it uses as much as digits as its factorization.

137861973241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182116970.

The product of its digits is 1524096, while the sum is 52.

The spelling of 137861973241 in words is "one hundred thirty-seven billion, eight hundred sixty-one million, nine hundred seventy-three thousand, two hundred forty-one".