147289085 has 4 divisors (see below), whose sum is σ = 176746908. Its totient is φ = 117831264.

The previous prime is 147289069. The next prime is 147289099. The reversal of 147289085 is 580982741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580982741 = 19 ⋅30578039.

It can be written as a sum of positive squares in 2 ways, for example, as 100681156 + 46607929 = 10034^2 + 6827^2 .

It is a cyclic number.

It is not a de Polignac number, because 147289085 - 2⁴ = 147289069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14728904 + ... + 14728913.

It is an arithmetic number, because the mean of its divisors is an integer number (44186727).

Almost surely, 2^147289085 is an apocalyptic number.

It is an amenable number.

147289085 is a deficient number, since it is larger than the sum of its proper divisors (29457823).

147289085 is an equidigital number, since it uses as much as digits as its factorization.

147289085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29457822.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 147289085 is about 12136.2714620265. The cubic root of 147289085 is about 528.1089424059.

The spelling of 147289085 in words is "one hundred forty-seven million, two hundred eighty-nine thousand, eighty-five".