137373149 has 2 divisors, whose sum is σ = 137373150. Its totient is φ = 137373148.

The previous prime is 137373139. The next prime is 137373157. The reversal of 137373149 is 941373731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 19802500 = 10843^2 + 4450^2 .

It is an emirp because it is prime and its reverse (941373731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137373149 - 2¹² = 137369053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137373109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68686574 + 68686575.

It is an arithmetic number, because the mean of its divisors is an integer number (68686575).

Almost surely, 2^137373149 is an apocalyptic number.

It is an amenable number.

137373149 is a deficient number, since it is larger than the sum of its proper divisors (1).

137373149 is an equidigital number, since it uses as much as digits as its factorization.

137373149 is an evil number, because the sum of its binary digits is even.

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

The square root of 137373149 is about 11720.6292066595. The cubic root of 137373149 is about 515.9812867540.

The spelling of 137373149 in words is "one hundred thirty-seven million, three hundred seventy-three thousand, one hundred forty-nine".