2154154345 has 16 divisors (see below), whose sum is σ = 2969745408. Its totient is φ = 1469396160.

The previous prime is 2154154297. The next prime is 2154154351. The reversal of 2154154345 is 5434514512.

It is not a de Polignac number, because 2154154345 - 2¹³ = 2154146153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2154154345.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 154434 + ... + 167803.

It is an arithmetic number, because the mean of its divisors is an integer number (185609088).

Almost surely, 2^2154154345 is an apocalyptic number.

It is an amenable number.

2154154345 is a deficient number, since it is larger than the sum of its proper divisors (815591063).

2154154345 is a wasteful number, since it uses less digits than its factorization.

2154154345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322440.

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

The square root of 2154154345 is about 46412.8683125704. The cubic root of 2154154345 is about 1291.4936417744.

Adding to 2154154345 its reverse (5434514512), we get a palindrome (7588668857).

The spelling of 2154154345 in words is "two billion, one hundred fifty-four million, one hundred fifty-four thousand, three hundred forty-five".