2154202 has 4 divisors (see below), whose sum is σ = 3231306. Its totient is φ = 1077100.

The previous prime is 2154193. The next prime is 2154209. The reversal of 2154202 is 2024512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 168921 = 1409^2 + 411^2 .

It is not an unprimeable number, because it can be changed into a prime (2154209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538549 + ... + 538552.

2^2154202 is an apocalyptic number.

2154202 is a deficient number, since it is larger than the sum of its proper divisors (1077104).

2154202 is a wasteful number, since it uses less digits than its factorization.

2154202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077103.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2154202 is about 1467.7200005451. The cubic root of 2154202 is about 129.1503165338.

Adding to 2154202 its reverse (2024512), we get a palindrome (4178714).

The spelling of 2154202 in words is "two million, one hundred fifty-four thousand, two hundred two".