44721151 has 2 divisors, whose sum is σ = 44721152. Its totient is φ = 44721150.

The previous prime is 44721143. The next prime is 44721191. The reversal of 44721151 is 15112744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44721151 - 2³ = 44721143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44721121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22360575 + 22360576.

It is an arithmetic number, because the mean of its divisors is an integer number (22360576).

Almost surely, 2^44721151 is an apocalyptic number.

44721151 is a deficient number, since it is larger than the sum of its proper divisors (1).

44721151 is an equidigital number, since it uses as much as digits as its factorization.

44721151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 25.

The square root of 44721151 is about 6687.3874569969. The cubic root of 44721151 is about 354.9531142206.

Adding to 44721151 its reverse (15112744), we get a palindrome (59833895).

The spelling of 44721151 in words is "forty-four million, seven hundred twenty-one thousand, one hundred fifty-one".