424222151 has 4 divisors (see below), whose sum is σ = 428186952. Its totient is φ = 420257352.

The previous prime is 424222129. The next prime is 424222163. The reversal of 424222151 is 151222424.

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

It is a cyclic number.

It is not a de Polignac number, because 424222151 - 2⁶ = 424222087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424222111) 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, 1982240 + ... + 1982453.

It is an arithmetic number, because the mean of its divisors is an integer number (107046738).

Almost surely, 2^424222151 is an apocalyptic number.

424222151 is a deficient number, since it is larger than the sum of its proper divisors (3964801).

424222151 is a wasteful number, since it uses less digits than its factorization.

424222151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964800.

The product of its digits is 1280, while the sum is 23.

The square root of 424222151 is about 20596.6538787251. The cubic root of 424222151 is about 751.3883327534.

Adding to 424222151 its reverse (151222424), we get a palindrome (575444575).

The spelling of 424222151 in words is "four hundred twenty-four million, two hundred twenty-two thousand, one hundred fifty-one".