137666495 has 8 divisors (see below), whose sum is σ = 173894640. Its totient is φ = 104336640.

The previous prime is 137666491. The next prime is 137666531. The reversal of 137666495 is 594666731.

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

It is not a de Polignac number, because 137666495 - 2² = 137666491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137666491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724466 + ... + 724655.

It is an arithmetic number, because the mean of its divisors is an integer number (21736830).

Almost surely, 2^137666495 is an apocalyptic number.

137666495 is a deficient number, since it is larger than the sum of its proper divisors (36228145).

137666495 is a wasteful number, since it uses less digits than its factorization.

137666495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449145.

The product of its digits is 816480, while the sum is 47.

The square root of 137666495 is about 11733.1366224041. The cubic root of 137666495 is about 516.3483003388.

The spelling of 137666495 in words is "one hundred thirty-seven million, six hundred sixty-six thousand, four hundred ninety-five".