147085861 has 8 divisors (see below), whose sum is σ = 158616920. Its totient is φ = 135585792.

The previous prime is 147085831. The next prime is 147085871. The reversal of 147085861 is 168580741.

It can be written as a sum of positive squares in 4 ways, for example, as 10336225 + 136749636 = 3215^2 + 11694^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 147085861 - 2¹³ = 147077669 is a prime.

It is a super-3 number, since 3×147085861³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147085831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2641 + ... + 17353.

It is an arithmetic number, because the mean of its divisors is an integer number (19827115).

Almost surely, 2^147085861 is an apocalyptic number.

It is an amenable number.

147085861 is a deficient number, since it is larger than the sum of its proper divisors (11531059).

147085861 is a wasteful number, since it uses less digits than its factorization.

147085861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 147085861 is about 12127.8959840526. The cubic root of 147085861 is about 527.8659422535.

The spelling of 147085861 in words is "one hundred forty-seven million, eighty-five thousand, eight hundred sixty-one".