136537983 has 6 divisors (see below), whose sum is σ = 197221544. Its totient is φ = 91025316.

The previous prime is 136537979. The next prime is 136537987. The reversal of 136537983 is 389735631.

136537983 is a `hidden beast` number, since 1 + 36 + 537 + 9 + 83 = 666.

It is an interprime number because it is at equal distance from previous prime (136537979) and next prime (136537987).

It is not a de Polignac number, because 136537983 - 2² = 136537979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136537987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7585435 + ... + 7585452.

Almost surely, 2^136537983 is an apocalyptic number.

136537983 is a deficient number, since it is larger than the sum of its proper divisors (60683561).

136537983 is a wasteful number, since it uses less digits than its factorization.

136537983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170893 (or 15170890 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 136537983 is about 11684.9468548214. The cubic root of 136537983 is about 514.9335170408.

The spelling of 136537983 in words is "one hundred thirty-six million, five hundred thirty-seven thousand, nine hundred eighty-three".