2129252 has 6 divisors (see below), whose sum is σ = 3726198.
Its totient is φ = 1064624.
The previous prime is 2129227. The next prime is 2129261. The reversal of 2129252 is 2529212.
It can be written as a sum of positive squares in only one way, i.e., 1833316 + 295936 = 1354^2 + 544^2
It is an alternating number because its digits alternate between even and odd.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266153 + ... + 266160.
It is an arithmetic number, because the mean of its divisors is an integer number (621033).
22129252 is an apocalyptic number.
It is an amenable number.
2129252 is a deficient number, since it is larger than the sum of its proper divisors (1596946).
2129252 is a wasteful number, since it uses less digits than its factorization.
2129252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 532317 (or 532315 counting only the distinct ones).
The product of its digits is 720, while the sum is 23.
The square root of 2129252 is about 1459.1956688532.
The cubic root of 2129252 is about 128.6497721232.
The spelling of 2129252 in words is "two million, one hundred twenty-nine thousand, two hundred fifty-two".