147444013 has 8 divisors (see below), whose sum is σ = 149679800. Its totient is φ = 145214208.

The previous prime is 147443983. The next prime is 147444049. The reversal of 147444013 is 310444741.

It can be written as a sum of positive squares in 4 ways, for example, as 28590409 + 118853604 = 5347^2 + 10902^2 .

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 147444013 - 2¹⁷ = 147312941 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 (147442013) 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, 81523 + ... + 83311.

It is an arithmetic number, because the mean of its divisors is an integer number (18709975).

Almost surely, 2^147444013 is an apocalyptic number.

It is an amenable number.

147444013 is a deficient number, since it is larger than the sum of its proper divisors (2235787).

147444013 is a wasteful number, since it uses less digits than its factorization.

147444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 147444013 is about 12142.6526344123. The cubic root of 147444013 is about 528.2940436793.

Adding to 147444013 its reverse (310444741), we get a palindrome (457888754).

The spelling of 147444013 in words is "one hundred forty-seven million, four hundred forty-four thousand, thirteen".