42444151 has 2 divisors, whose sum is σ = 42444152. Its totient is φ = 42444150.

The previous prime is 42444133. The next prime is 42444161. The reversal of 42444151 is 15144424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42444151 - 2¹³ = 42435959 is a prime.

It is a super-2 number, since 2×42444151² = 3603011908221602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42444161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222075 + 21222076.

It is an arithmetic number, because the mean of its divisors is an integer number (21222076).

Almost surely, 2^42444151 is an apocalyptic number.

42444151 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444151 is an equidigital number, since it uses as much as digits as its factorization.

42444151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 25.

The square root of 42444151 is about 6514.9175743059. The cubic root of 42444151 is about 348.8236726377.

Adding to 42444151 its reverse (15144424), we get a palindrome (57588575).

The spelling of 42444151 in words is "forty-two million, four hundred forty-four thousand, one hundred fifty-one".