135567545 has 12 divisors (see below), whose sum is σ = 165506340. Its totient is φ = 106602144.

The previous prime is 135567541. The next prime is 135567581. The reversal of 135567545 is 545765531.

It can be written as a sum of positive squares in 2 ways, for example, as 64384576 + 71182969 = 8024^2 + 8437^2 .

It is not a de Polignac number, because 135567545 - 2² = 135567541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135567541) 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 in 11 ways as a sum of consecutive naturals, for example, 13511 + ... + 21299.

It is an arithmetic number, because the mean of its divisors is an integer number (13792195).

Almost surely, 2^135567545 is an apocalyptic number.

It is an amenable number.

135567545 is a deficient number, since it is larger than the sum of its proper divisors (29938795).

135567545 is an frugal number, since it uses more digits than its factorization.

135567545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7912 (or 7853 counting only the distinct ones).

The product of its digits is 315000, while the sum is 41.

The square root of 135567545 is about 11643.3476715247. The cubic root of 135567545 is about 513.7106591708.

The spelling of 135567545 in words is "one hundred thirty-five million, five hundred sixty-seven thousand, five hundred forty-five".