135720304 has 20 divisors (see below), whose sum is σ = 263175120. Its totient is φ = 67804160.

The previous prime is 135720301. The next prime is 135720307. The reversal of 135720304 is 403027531.

It is an interprime number because it is at equal distance from previous prime (135720301) and next prime (135720307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135720301) 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, 22224 + ... + 27664.

It is an arithmetic number, because the mean of its divisors is an integer number (13158756).

Almost surely, 2^135720304 is an apocalyptic number.

It is an amenable number.

135720304 is a deficient number, since it is larger than the sum of its proper divisors (127454816).

135720304 is a wasteful number, since it uses less digits than its factorization.

135720304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008 (or 7002 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 135720304 is about 11649.9057506917. The cubic root of 135720304 is about 513.9035383488.

Adding to 135720304 its reverse (403027531), we get a palindrome (538747835).

The spelling of 135720304 in words is "one hundred thirty-five million, seven hundred twenty thousand, three hundred four".