2154122302 has 16 divisors (see below), whose sum is σ = 3420916560. Its totient is φ = 1014472512.

The previous prime is 2154122297. The next prime is 2154122303. The reversal of 2154122302 is 2032214512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154122303) 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 7 ways as a sum of consecutive naturals, for example, 157263 + ... + 170410.

It is an arithmetic number, because the mean of its divisors is an integer number (213807285).

Almost surely, 2^2154122302 is an apocalyptic number.

2154122302 is a deficient number, since it is larger than the sum of its proper divisors (1266794258).

2154122302 is a wasteful number, since it uses less digits than its factorization.

2154122302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327867.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2154122302 is about 46412.5231160729. The cubic root of 2154122302 is about 1291.4872380958.

Adding to 2154122302 its reverse (2032214512), we get a palindrome (4186336814).

The spelling of 2154122302 in words is "two billion, one hundred fifty-four million, one hundred twenty-two thousand, three hundred two".