136845393 has 16 divisors (see below), whose sum is σ = 197689536. Its totient is φ = 83865600.

The previous prime is 136845389. The next prime is 136845407. The reversal of 136845393 is 393548631.

It is not a de Polignac number, because 136845393 - 2² = 136845389 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136845323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29008 + ... + 33393.

It is an arithmetic number, because the mean of its divisors is an integer number (12355596).

Almost surely, 2^136845393 is an apocalyptic number.

It is an amenable number.

136845393 is a deficient number, since it is larger than the sum of its proper divisors (60844143).

136845393 is a wasteful number, since it uses less digits than its factorization.

136845393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62464.

The product of its digits is 233280, while the sum is 42.

The square root of 136845393 is about 11698.0935626281. The cubic root of 136845393 is about 515.3196783576.

The spelling of 136845393 in words is "one hundred thirty-six million, eight hundred forty-five thousand, three hundred ninety-three".