137966889 has 8 divisors (see below), whose sum is σ = 184010112. Its totient is φ = 91950800.

The previous prime is 137966887. The next prime is 137966921. The reversal of 137966889 is 988669731.

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 137966889 - 2¹ = 137966887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137966887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16672 + ... + 23534.

It is an arithmetic number, because the mean of its divisors is an integer number (23001264).

Almost surely, 2^137966889 is an apocalyptic number.

It is an amenable number.

137966889 is a deficient number, since it is larger than the sum of its proper divisors (46043223).

137966889 is an equidigital number, since it uses as much as digits as its factorization.

137966889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13567.

The product of its digits is 3919104, while the sum is 57.

The square root of 137966889 is about 11745.9307421762. The cubic root of 137966889 is about 516.7235919704.

The spelling of 137966889 in words is "one hundred thirty-seven million, nine hundred sixty-six thousand, eight hundred eighty-nine".