135521002154 has 8 divisors (see below), whose sum is σ = 205181330688. Its totient is φ = 67127225260.

The previous prime is 135521002091. The next prime is 135521002163. The reversal of 135521002154 is 451200125531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316637642 + ... + 316638069.

It is an arithmetic number, because the mean of its divisors is an integer number (25647666336).

Almost surely, 2^135521002154 is an apocalyptic number.

135521002154 is a deficient number, since it is larger than the sum of its proper divisors (69660328534).

135521002154 is a wasteful number, since it uses less digits than its factorization.

135521002154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633275820.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 135521002154 its reverse (451200125531), we get a palindrome (586721127685).

The spelling of 135521002154 in words is "one hundred thirty-five billion, five hundred twenty-one million, two thousand, one hundred fifty-four".