135620774 has 4 divisors (see below), whose sum is σ = 203431164. Its totient is φ = 67810386.

The previous prime is 135620767. The next prime is 135620777. The reversal of 135620774 is 477026531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477026531 = 1699 ⋅280769.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135620777) 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 as a sum of consecutive naturals, namely, 33905192 + ... + 33905195.

It is an arithmetic number, because the mean of its divisors is an integer number (50857791).

Almost surely, 2^135620774 is an apocalyptic number.

135620774 is a deficient number, since it is larger than the sum of its proper divisors (67810390).

135620774 is an equidigital number, since it uses as much as digits as its factorization.

135620774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67810389.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 135620774 is about 11645.6332588657. The cubic root of 135620774 is about 513.7778845200. Note that the first 3 decimals are identical.

The spelling of 135620774 in words is "one hundred thirty-five million, six hundred twenty thousand, seven hundred seventy-four".