136969 has 8 divisors (see below), whose sum is σ = 165888. Its totient is φ = 110400.

The previous prime is 136963. The next prime is 136973. The reversal of 136969 is 969631.

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 136969 - 2⁷ = 136841 is a prime.

It is a super-2 number, since 2×136969² = 37521013922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (20736).

2¹³⁶⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

136969 is a deficient number, since it is larger than the sum of its proper divisors (28919).

136969 is a wasteful number, since it uses less digits than its factorization.

136969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175.

The product of its digits is 8748, while the sum is 34.

The square root of 136969 is about 370.0932314971. The cubic root of 136969 is about 51.5474787588.

The spelling of 136969 in words is "one hundred thirty-six thousand, nine hundred sixty-nine".