2122997154 has 8 divisors (see below), whose sum is σ = 4245994320. Its totient is φ = 707665716.

The previous prime is 2122997153. The next prime is 2122997159. The reversal of 2122997154 is 4517992212.

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

2122997154 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2122997153) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 176916424 + ... + 176916435.

It is an arithmetic number, because the mean of its divisors is an integer number (530749290).

Almost surely, 2^2122997154 is an apocalyptic number.

2122997154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122997154 is a wasteful number, since it uses less digits than its factorization.

2122997154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353832864.

The product of its digits is 90720, while the sum is 42.

The square root of 2122997154 is about 46075.9932502816. The cubic root of 2122997154 is about 1285.2367561256.

It can be divided in two parts, 212299 and 7154, that added together give a triangular number (219453 = T₆₆₂).

The spelling of 2122997154 in words is "two billion, one hundred twenty-two million, nine hundred ninety-seven thousand, one hundred fifty-four".