424121251 has 2 divisors, whose sum is σ = 424121252. Its totient is φ = 424121250.

The previous prime is 424121239. The next prime is 424121263. The reversal of 424121251 is 152121424.

It is a balanced prime because it is at equal distance from previous prime (424121239) and next prime (424121263).

It is a cyclic number.

It is not a de Polignac number, because 424121251 - 2¹¹ = 424119203 is a prime.

It is not a weakly prime, because it can be changed into another prime (424121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212060625 + 212060626.

It is an arithmetic number, because the mean of its divisors is an integer number (212060626).

Almost surely, 2^424121251 is an apocalyptic number.

424121251 is a deficient number, since it is larger than the sum of its proper divisors (1).

424121251 is an equidigital number, since it uses as much as digits as its factorization.

424121251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 22.

The square root of 424121251 is about 20594.2043060663. The cubic root of 424121251 is about 751.3287561894.

Adding to 424121251 its reverse (152121424), we get a palindrome (576242675).

The spelling of 424121251 in words is "four hundred twenty-four million, one hundred twenty-one thousand, two hundred fifty-one".