147644322061 has 8 divisors (see below), whose sum is σ = 149704962680. Its totient is φ = 145594672128.

The previous prime is 147644322041. The next prime is 147644322113. The reversal of 147644322061 is 160223446741.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 595848100 + 147048473961 = 24410^2 + 383469^2 .

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 147644322061 - 2⁷ = 147644321933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147644322031) 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 in 7 ways as a sum of consecutive naturals, for example, 2720616 + ... + 2774353.

It is an arithmetic number, because the mean of its divisors is an integer number (18713120335).

Almost surely, 2^147644322061 is an apocalyptic number.

It is an amenable number.

147644322061 is a deficient number, since it is larger than the sum of its proper divisors (2060640619).

147644322061 is an equidigital number, since it uses as much as digits as its factorization.

147644322061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495343.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 147644322061 in words is "one hundred forty-seven billion, six hundred forty-four million, three hundred twenty-two thousand, sixty-one".