137173943 has 2 divisors, whose sum is σ = 137173944. Its totient is φ = 137173942.

The previous prime is 137173937. The next prime is 137173979. The reversal of 137173943 is 349371731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137173943 - 2¹⁶ = 137108407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137173897 and 137173906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137173343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68586971 + 68586972.

It is an arithmetic number, because the mean of its divisors is an integer number (68586972).

Almost surely, 2^137173943 is an apocalyptic number.

137173943 is a deficient number, since it is larger than the sum of its proper divisors (1).

137173943 is an equidigital number, since it uses as much as digits as its factorization.

137173943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 137173943 is about 11712.1280303794. The cubic root of 137173943 is about 515.7317564469.

The spelling of 137173943 in words is "one hundred thirty-seven million, one hundred seventy-three thousand, nine hundred forty-three".