135452021254 has 16 divisors (see below), whose sum is σ = 221654417040. Its totient is φ = 61567529760.

The previous prime is 135452021183. The next prime is 135452021281. The reversal of 135452021254 is 452120254531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611412 + ... + 1693384.

It is an arithmetic number, because the mean of its divisors is an integer number (13853401065).

Almost surely, 2^135452021254 is an apocalyptic number.

135452021254 is a deficient number, since it is larger than the sum of its proper divisors (86202395786).

135452021254 is a wasteful number, since it uses less digits than its factorization.

135452021254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157095.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 135452021254 its reverse (452120254531), we get a palindrome (587572275785).

The spelling of 135452021254 in words is "one hundred thirty-five billion, four hundred fifty-two million, twenty-one thousand, two hundred fifty-four".