137394308833 has 4 divisors (see below), whose sum is σ = 137528878228. Its totient is φ = 137259739440.

The previous prime is 137394308783. The next prime is 137394308851. The reversal of 137394308833 is 338803493731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61178559649 + 76215749184 = 247343^2 + 276072^2 .

It is a cyclic number.

It is not a de Polignac number, because 137394308833 - 2¹⁷ = 137394177761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137394308033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67283166 + ... + 67285207.

It is an arithmetic number, because the mean of its divisors is an integer number (34382219557).

Almost surely, 2^137394308833 is an apocalyptic number.

It is an amenable number.

137394308833 is a deficient number, since it is larger than the sum of its proper divisors (134569395).

137394308833 is a wasteful number, since it uses less digits than its factorization.

137394308833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134569394.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 137394308833 in words is "one hundred thirty-seven billion, three hundred ninety-four million, three hundred eight thousand, eight hundred thirty-three".