136983697 has 8 divisors (see below), whose sum is σ = 139883976. Its totient is φ = 134111232.

The previous prime is 136983683. The next prime is 136983701. The reversal of 136983697 is 796389631.

It can be written as a sum of positive squares in 4 ways, for example, as 3326976 + 133656721 = 1824^2 + 11561^2 .

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 136983697 - 2¹⁹ = 136459409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136983097) 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, 3153 + ... + 16849.

It is an arithmetic number, because the mean of its divisors is an integer number (17485497).

Almost surely, 2^136983697 is an apocalyptic number.

It is an amenable number.

136983697 is a deficient number, since it is larger than the sum of its proper divisors (2900279).

136983697 is a wasteful number, since it uses less digits than its factorization.

136983697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13907.

The product of its digits is 1469664, while the sum is 52.

The square root of 136983697 is about 11704.0034603549. The cubic root of 136983697 is about 515.4932240273.

The spelling of 136983697 in words is "one hundred thirty-six million, nine hundred eighty-three thousand, six hundred ninety-seven".