147312001 has 4 divisors (see below), whose sum is σ = 148250452. Its totient is φ = 146373552.

The previous prime is 147311981. The next prime is 147312013. The reversal of 147312001 is 100213741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100213741 = 2221 ⋅45121.

It can be written as a sum of positive squares in 2 ways, for example, as 69889600 + 77422401 = 8360^2 + 8799^2 .

It is a cyclic number.

It is not a de Polignac number, because 147312001 - 2⁷ = 147311873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147312001.

It is not an unprimeable number, because it can be changed into a prime (147312041) 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 3 ways as a sum of consecutive naturals, for example, 468990 + ... + 469303.

It is an arithmetic number, because the mean of its divisors is an integer number (37062613).

Almost surely, 2^147312001 is an apocalyptic number.

It is an amenable number.

147312001 is a deficient number, since it is larger than the sum of its proper divisors (938451).

147312001 is an equidigital number, since it uses as much as digits as its factorization.

147312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938450.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 147312001 is about 12137.2155373463. The cubic root of 147312001 is about 528.1363296287.

Adding to 147312001 its reverse (100213741), we get a palindrome (247525742).

The spelling of 147312001 in words is "one hundred forty-seven million, three hundred twelve thousand, one".