136345403 has 4 divisors (see below), whose sum is σ = 142273488. Its totient is φ = 130417320.

The previous prime is 136345399. The next prime is 136345411. The reversal of 136345403 is 304543631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304543631 = 7 ⋅43506233.

It is a cyclic number.

It is not a de Polignac number, because 136345403 - 2² = 136345399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136345453) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2964008 + ... + 2964053.

It is an arithmetic number, because the mean of its divisors is an integer number (35568372).

Almost surely, 2^136345403 is an apocalyptic number.

136345403 is a deficient number, since it is larger than the sum of its proper divisors (5928085).

136345403 is an equidigital number, since it uses as much as digits as its factorization.

136345403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928084.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 136345403 is about 11676.7034303351. The cubic root of 136345403 is about 514.6913071347.

The spelling of 136345403 in words is "one hundred thirty-six million, three hundred forty-five thousand, four hundred three".