136168399 has 8 divisors (see below), whose sum is σ = 144361088. Its totient is φ = 128213280.

The previous prime is 136168397. The next prime is 136168423. The reversal of 136168399 is 993861631.

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 136168399 - 2¹ = 136168397 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 (136168393) 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, 58212 + ... + 60505.

It is an arithmetic number, because the mean of its divisors is an integer number (18045136).

Almost surely, 2^136168399 is an apocalyptic number.

136168399 is a deficient number, since it is larger than the sum of its proper divisors (8192689).

136168399 is a wasteful number, since it uses less digits than its factorization.

136168399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118785.

The product of its digits is 209952, while the sum is 46.

The square root of 136168399 is about 11669.1216036170. The cubic root of 136168399 is about 514.4684860990.

The spelling of 136168399 in words is "one hundred thirty-six million, one hundred sixty-eight thousand, three hundred ninety-nine".