85144153 has 2 divisors, whose sum is σ = 85144154. Its totient is φ = 85144152.

The previous prime is 85144121. The next prime is 85144181. The reversal of 85144153 is 35144158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44796249 + 40347904 = 6693^2 + 6352^2 .

It is a cyclic number.

It is not a de Polignac number, because 85144153 - 2⁵ = 85144121 is a prime.

It is not a weakly prime, because it can be changed into another prime (85141153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42572076 + 42572077.

It is an arithmetic number, because the mean of its divisors is an integer number (42572077).

Almost surely, 2^85144153 is an apocalyptic number.

It is an amenable number.

85144153 is a deficient number, since it is larger than the sum of its proper divisors (1).

85144153 is an equidigital number, since it uses as much as digits as its factorization.

85144153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 31.

The square root of 85144153 is about 9227.3589395883. The cubic root of 85144153 is about 439.9313822060.

The spelling of 85144153 in words is "eighty-five million, one hundred forty-four thousand, one hundred fifty-three".