2120154 has 8 divisors (see below), whose sum is σ = 4240320. Its totient is φ = 706716.

The previous prime is 2120147. The next prime is 2120171. The reversal of 2120154 is 4510212.

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

2120154 is an admirable number.

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, 176674 + ... + 176685.

It is an arithmetic number, because the mean of its divisors is an integer number (530040).

2^2120154 is an apocalyptic number.

2120154 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.

2120154 is a wasteful number, since it uses less digits than its factorization.

2120154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353364.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2120154 is about 1456.0748607129. The cubic root of 2120154 is about 128.4662762820.

Adding to 2120154 its reverse (4510212), we get a palindrome (6630366).

The spelling of 2120154 in words is "two million, one hundred twenty thousand, one hundred fifty-four".