136552999 has 4 divisors (see below), whose sum is σ = 148966920. Its totient is φ = 124139080.

The previous prime is 136552973. The next prime is 136553009. The reversal of 136552999 is 999255631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136552999 - 2¹⁵ = 136520231 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 (136552699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206944 + ... + 6206965.

It is an arithmetic number, because the mean of its divisors is an integer number (37241730).

Almost surely, 2^136552999 is an apocalyptic number.

136552999 is a deficient number, since it is larger than the sum of its proper divisors (12413921).

136552999 is a wasteful number, since it uses less digits than its factorization.

136552999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413920.

The product of its digits is 656100, while the sum is 49.

The square root of 136552999 is about 11685.5893732409. The cubic root of 136552999 is about 514.9523932491.

The spelling of 136552999 in words is "one hundred thirty-six million, five hundred fifty-two thousand, nine hundred ninety-nine".