2272154 has 4 divisors (see below), whose sum is σ = 3408234. Its totient is φ = 1136076.

The previous prime is 2272141. The next prime is 2272177. The reversal of 2272154 is 4512722.

It is a happy number.

2272154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4512722 = 2 ⋅2256361.

It can be written as a sum of positive squares in only one way, i.e., 1760929 + 511225 = 1327^2 + 715^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568037 + ... + 568040.

2^2272154 is an apocalyptic number.

2272154 is a deficient number, since it is larger than the sum of its proper divisors (1136080).

2272154 is a wasteful number, since it uses less digits than its factorization.

2272154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136079.

The product of its digits is 1120, while the sum is 23.

The square root of 2272154 is about 1507.3665778436. The cubic root of 2272154 is about 131.4657392180.

Adding to 2272154 its reverse (4512722), we get a palindrome (6784876).

The spelling of 2272154 in words is "two million, two hundred seventy-two thousand, one hundred fifty-four".