137394997 has 8 divisors (see below), whose sum is σ = 140071392. Its totient is φ = 134732400.

The previous prime is 137394991. The next prime is 137395001. The reversal of 137394997 is 799493731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137394997 - 2³ = 137394989 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 (137394991) 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 in 7 ways as a sum of consecutive naturals, for example, 17922 + ... + 24412.

It is an arithmetic number, because the mean of its divisors is an integer number (17508924).

Almost surely, 2^137394997 is an apocalyptic number.

It is an amenable number.

137394997 is a deficient number, since it is larger than the sum of its proper divisors (2676395).

137394997 is an equidigital number, since it uses as much as digits as its factorization.

137394997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899.

The product of its digits is 1285956, while the sum is 52.

The square root of 137394997 is about 11721.5612014782. The cubic root of 137394997 is about 516.0086394103.

The spelling of 137394997 in words is "one hundred thirty-seven million, three hundred ninety-four thousand, nine hundred ninety-seven".