135920547 has 48 divisors (see below), whose sum is σ = 246504960. Its totient is φ = 70367616.

The previous prime is 135920537. The next prime is 135920557. The reversal of 135920547 is 745029531.

135920547 is a `hidden beast` number, since 13 + 592 + 0 + 54 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (135920537) and next prime (135920557).

It is not a de Polignac number, because 135920547 - 2¹¹ = 135918499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135920537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25063 + ... + 29999.

It is an arithmetic number, because the mean of its divisors is an integer number (5135520).

Almost surely, 2^135920547 is an apocalyptic number.

135920547 is a deficient number, since it is larger than the sum of its proper divisors (110584413).

135920547 is a wasteful number, since it uses less digits than its factorization.

135920547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992 (or 4989 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 135920547 is about 11658.4967727405. The cubic root of 135920547 is about 514.1561535075.

The spelling of 135920547 in words is "one hundred thirty-five million, nine hundred twenty thousand, five hundred forty-seven".