137427943 has 2 divisors, whose sum is σ = 137427944. Its totient is φ = 137427942.

The previous prime is 137427919. The next prime is 137427947. The reversal of 137427943 is 349724731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137427943 - 2⁹ = 137427431 is a prime.

It is a super-2 number, since 2×137427943² = 37772879034422498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137427896 and 137427905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137427947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68713971 + 68713972.

It is an arithmetic number, because the mean of its divisors is an integer number (68713972).

Almost surely, 2^137427943 is an apocalyptic number.

137427943 is a deficient number, since it is larger than the sum of its proper divisors (1).

137427943 is an equidigital number, since it uses as much as digits as its factorization.

137427943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 137427943 is about 11722.9664761100. The cubic root of 137427943 is about 516.0498807517.

The spelling of 137427943 in words is "one hundred thirty-seven million, four hundred twenty-seven thousand, nine hundred forty-three".