137285673641 has 4 divisors (see below), whose sum is σ = 137286819012. Its totient is φ = 137284528272.

The previous prime is 137285673601. The next prime is 137285673673. The reversal of 137285673641 is 146376582731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146376582731 = 557 ⋅262794583.

It can be written as a sum of positive squares in 2 ways, for example, as 32335592041 + 104950081600 = 179821^2 + 323960^2 .

It is a cyclic number.

It is not a de Polignac number, because 137285673641 - 2²² = 137281479337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137285673601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368666 + ... + 640691.

It is an arithmetic number, because the mean of its divisors is an integer number (34321704753).

Almost surely, 2^137285673641 is an apocalyptic number.

It is an amenable number.

137285673641 is a deficient number, since it is larger than the sum of its proper divisors (1145371).

137285673641 is a wasteful number, since it uses less digits than its factorization.

137285673641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145370.

The product of its digits is 5080320, while the sum is 53.

The spelling of 137285673641 in words is "one hundred thirty-seven billion, two hundred eighty-five million, six hundred seventy-three thousand, six hundred forty-one".