87445153 has 2 divisors, whose sum is σ = 87445154. Its totient is φ = 87445152.

The previous prime is 87445123. The next prime is 87445181. The reversal of 87445153 is 35154478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85155984 + 2289169 = 9228^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 87445153 - 2²¹ = 85348001 is a prime.

It is not a weakly prime, because it can be changed into another prime (87445123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43722576 + 43722577.

It is an arithmetic number, because the mean of its divisors is an integer number (43722577).

Almost surely, 2^87445153 is an apocalyptic number.

It is an amenable number.

87445153 is a deficient number, since it is larger than the sum of its proper divisors (1).

87445153 is an equidigital number, since it uses as much as digits as its factorization.

87445153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 87445153 is about 9351.2113119103. The cubic root of 87445153 is about 443.8592217294.

The spelling of 87445153 in words is "eighty-seven million, four hundred forty-five thousand, one hundred fifty-three".