136783669 has 8 divisors (see below), whose sum is σ = 149303520. Its totient is φ = 124278000.

The previous prime is 136783663. The next prime is 136783697. The reversal of 136783669 is 966387631.

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

It is not a de Polignac number, because 136783669 - 2⁵ = 136783637 is a prime.

It is a super-2 number, since 2×136783669² = 37419544210203122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136783663) 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, 33594 + ... + 37444.

It is an arithmetic number, because the mean of its divisors is an integer number (18662940).

Almost surely, 2^136783669 is an apocalyptic number.

It is an amenable number.

136783669 is a deficient number, since it is larger than the sum of its proper divisors (12519851).

136783669 is a wasteful number, since it uses less digits than its factorization.

136783669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091.

The product of its digits is 979776, while the sum is 49.

The square root of 136783669 is about 11695.4550574144. The cubic root of 136783669 is about 515.2421885360.

The spelling of 136783669 in words is "one hundred thirty-six million, seven hundred eighty-three thousand, six hundred sixty-nine".