147331001 has 4 divisors (see below), whose sum is σ = 147472500. Its totient is φ = 147189504.

The previous prime is 147330983. The next prime is 147331021. The reversal of 147331001 is 100133741.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100133741 = 1433 ⋅69877.

It can be written as a sum of positive squares in 2 ways, for example, as 97614400 + 49716601 = 9880^2 + 7051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147331001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147331021) 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, 69176 + ... + 71273.

It is an arithmetic number, because the mean of its divisors is an integer number (36868125).

Almost surely, 2^147331001 is an apocalyptic number.

It is an amenable number.

147331001 is a deficient number, since it is larger than the sum of its proper divisors (141499).

147331001 is a wasteful number, since it uses less digits than its factorization.

147331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141498.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 147331001 is about 12137.9982287031. The cubic root of 147331001 is about 528.1590346331.

Adding to 147331001 its reverse (100133741), we get a palindrome (247464742).

The spelling of 147331001 in words is "one hundred forty-seven million, three hundred thirty-one thousand, one".