137069866 has 4 divisors (see below), whose sum is σ = 205604802. Its totient is φ = 68534932.

The previous prime is 137069843. The next prime is 137069893. The reversal of 137069866 is 668960731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 130439241 + 6630625 = 11421^2 + 2575^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34267465 + ... + 34267468.

Almost surely, 2^137069866 is an apocalyptic number.

137069866 is a deficient number, since it is larger than the sum of its proper divisors (68534936).

137069866 is an equidigital number, since it uses as much as digits as its factorization.

137069866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68534935.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 137069866 is about 11707.6840579168. The cubic root of 137069866 is about 515.6012909625.

The spelling of 137069866 in words is "one hundred thirty-seven million, sixty-nine thousand, eight hundred sixty-six".