2154072 has 16 divisors (see below), whose sum is σ = 5385240. Its totient is φ = 718016.

The previous prime is 2154071. The next prime is 2154077. The reversal of 2154072 is 2704512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44853 + ... + 44900.

2^2154072 is an apocalyptic number.

It is an amenable number.

2154072 is an abundant number, since it is smaller than the sum of its proper divisors (3231168).

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

2154072 is a wasteful number, since it uses less digits than its factorization.

2154072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89762 (or 89758 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2154072 is about 1467.6757135008. The cubic root of 2154072 is about 129.1477185294.

Subtracting from 2154072 its product of nonzero digits (560), we obtain a palindrome (2153512).

Adding to 2154072 its reverse (2704512), we get a palindrome (4858584).

It can be divided in two parts, 21540 and 72, that added together give a palindrome (21612).

The spelling of 2154072 in words is "two million, one hundred fifty-four thousand, seventy-two".