137131475933 has 4 divisors (see below), whose sum is σ = 137362726908. Its totient is φ = 136900224960.

The previous prime is 137131475891. The next prime is 137131475977. The reversal of 137131475933 is 339574131731.

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 115898031844 + 21233444089 = 340438^2 + 145717^2 .

It is a cyclic number.

It is not a de Polignac number, because 137131475933 - 2¹² = 137131471837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137131475983) 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, 115624598 + ... + 115625783.

It is an arithmetic number, because the mean of its divisors is an integer number (34340681727).

Almost surely, 2^137131475933 is an apocalyptic number.

It is an amenable number.

137131475933 is a deficient number, since it is larger than the sum of its proper divisors (231250975).

137131475933 is an equidigital number, since it uses as much as digits as its factorization.

137131475933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231250974.

The product of its digits is 714420, while the sum is 47.

The spelling of 137131475933 in words is "one hundred thirty-seven billion, one hundred thirty-one million, four hundred seventy-five thousand, nine hundred thirty-three".