2154334545135 has 24 divisors (see below), whose sum is σ = 3737310046704. Its totient is φ = 1148015295360.

The previous prime is 2154334545133. The next prime is 2154334545137. The reversal of 2154334545135 is 5315454334512.

2154334545135 is a `hidden beast` number, since 2 + 1 + 5 + 43 + 34 + 545 + 1 + 35 = 666.

It is an interprime number because it is at equal distance from previous prime (2154334545133) and next prime (2154334545137).

It is not a de Polignac number, because 2154334545135 - 2¹ = 2154334545133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154334545133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20010901 + ... + 20118270.

It is an arithmetic number, because the mean of its divisors is an integer number (155721251946).

Almost surely, 2^{2154334545135} is an apocalyptic number.

2154334545135 is a deficient number, since it is larger than the sum of its proper divisors (1582975501569).

2154334545135 is a wasteful number, since it uses less digits than its factorization.

2154334545135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40130375 (or 40130372 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

Adding to 2154334545135 its reverse (5315454334512), we get a palindrome (7469788879647).

The spelling of 2154334545135 in words is "two trillion, one hundred fifty-four billion, three hundred thirty-four million, five hundred forty-five thousand, one hundred thirty-five".