136920298 has 4 divisors (see below), whose sum is σ = 205380450. Its totient is φ = 68460148.

The previous prime is 136920263. The next prime is 136920323. The reversal of 136920298 is 892029631.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 136819809 + 100489 = 11697^2 + 317^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 136920298.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34230073 + ... + 34230076.

Almost surely, 2^136920298 is an apocalyptic number.

136920298 is a deficient number, since it is larger than the sum of its proper divisors (68460152).

136920298 is an equidigital number, since it uses as much as digits as its factorization.

136920298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68460151.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 136920298 is about 11701.2947146886. The cubic root of 136920298 is about 515.4136846397.

The spelling of 136920298 in words is "one hundred thirty-six million, nine hundred twenty thousand, two hundred ninety-eight".