4251229 has 4 divisors (see below), whose sum is σ = 4255360. Its totient is φ = 4247100.

The previous prime is 4251223. The next prime is 4251239. The reversal of 4251229 is 9221524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4251229 - 2²¹ = 2154077 is a prime.

It is a Duffinian number.

4251229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251223) 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, 862 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (1063840).

Almost surely, 2^4251229 is an apocalyptic number.

It is an amenable number.

4251229 is a deficient number, since it is larger than the sum of its proper divisors (4131).

4251229 is a wasteful number, since it uses less digits than its factorization.

4251229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130.

The product of its digits is 1440, while the sum is 25.

The square root of 4251229 is about 2061.8508675460. The cubic root of 4251229 is about 161.9962022175.

The spelling of 4251229 in words is "four million, two hundred fifty-one thousand, two hundred twenty-nine".