147143285 has 8 divisors (see below), whose sum is σ = 179466936. Its totient is φ = 115784640.

The previous prime is 147143281. The next prime is 147143287. The reversal of 147143285 is 582341741.

147143285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1168561 + 145974724 = 1081^2 + 12082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147143285 - 2² = 147143281 is a prime.

It is a super-2 number, since 2×147143285² = 43302292641182450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147143281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240914 + ... + 241523.

It is an arithmetic number, because the mean of its divisors is an integer number (22433367).

Almost surely, 2^147143285 is an apocalyptic number.

It is an amenable number.

147143285 is a deficient number, since it is larger than the sum of its proper divisors (32323651).

147143285 is an equidigital number, since it uses as much as digits as its factorization.

147143285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482503.

The product of its digits is 26880, while the sum is 35.

The square root of 147143285 is about 12130.2631875817. The cubic root of 147143285 is about 527.9346282799.

The spelling of 147143285 in words is "one hundred forty-seven million, one hundred forty-three thousand, two hundred eighty-five".