137351693 has 2 divisors, whose sum is σ = 137351694. Its totient is φ = 137351692.

The previous prime is 137351689. The next prime is 137351717. The reversal of 137351693 is 396153731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83137924 + 54213769 = 9118^2 + 7363^2 .

It is a cyclic number.

It is not a de Polignac number, because 137351693 - 2² = 137351689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137351623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68675846 + 68675847.

It is an arithmetic number, because the mean of its divisors is an integer number (68675847).

Almost surely, 2^137351693 is an apocalyptic number.

It is an amenable number.

137351693 is a deficient number, since it is larger than the sum of its proper divisors (1).

137351693 is an equidigital number, since it uses as much as digits as its factorization.

137351693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 38.

The square root of 137351693 is about 11719.7138616947. The cubic root of 137351693 is about 515.9544220404.

The spelling of 137351693 in words is "one hundred thirty-seven million, three hundred fifty-one thousand, six hundred ninety-three".