135251545 has 24 divisors (see below), whose sum is σ = 191737152. Its totient is φ = 90792000.

The previous prime is 135251533. The next prime is 135251549. The reversal of 135251545 is 545152531.

It is not a de Polignac number, because 135251545 - 2⁵ = 135251513 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135251549) 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 23 ways as a sum of consecutive naturals, for example, 2020 + ... + 16570.

It is an arithmetic number, because the mean of its divisors is an integer number (7989048).

Almost surely, 2^135251545 is an apocalyptic number.

It is an amenable number.

135251545 is a deficient number, since it is larger than the sum of its proper divisors (56485607).

135251545 is a wasteful number, since it uses less digits than its factorization.

135251545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14593 (or 14580 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 135251545 is about 11629.7697741615. The cubic root of 135251545 is about 513.3112054984.

The spelling of 135251545 in words is "one hundred thirty-five million, two hundred fifty-one thousand, five hundred forty-five".