89405149 has 2 divisors, whose sum is σ = 89405150. Its totient is φ = 89405148.

The previous prime is 89405123. The next prime is 89405153. The reversal of 89405149 is 94150498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88924900 + 480249 = 9430^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 89405149 - 2⁷ = 89405021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89405249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44702574 + 44702575.

It is an arithmetic number, because the mean of its divisors is an integer number (44702575).

Almost surely, 2^89405149 is an apocalyptic number.

It is an amenable number.

89405149 is a deficient number, since it is larger than the sum of its proper divisors (1).

89405149 is an equidigital number, since it uses as much as digits as its factorization.

89405149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 89405149 is about 9455.4296042010. The cubic root of 89405149 is about 447.1509698973.

The spelling of 89405149 in words is "eighty-nine million, four hundred five thousand, one hundred forty-nine".