1472330021 has 2 divisors, whose sum is σ = 1472330022. Its totient is φ = 1472330020.

The previous prime is 1472330009. The next prime is 1472330023. The reversal of 1472330021 is 1200332741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807412225 + 664917796 = 28415^2 + 25786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1472330021 is a prime.

Together with 1472330023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472330023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736165010 + 736165011.

It is an arithmetic number, because the mean of its divisors is an integer number (736165011).

Almost surely, 2^1472330021 is an apocalyptic number.

It is an amenable number.

1472330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472330021 is an equidigital number, since it uses as much as digits as its factorization.

1472330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1472330021 is about 38370.9528289304. The cubic root of 1472330021 is about 1137.6317978911.

Adding to 1472330021 its reverse (1200332741), we get a palindrome (2672662762).

It can be divided in two parts, 14723 and 30021, that added together give a palindrome (44744).

The spelling of 1472330021 in words is "one billion, four hundred seventy-two million, three hundred thirty thousand, twenty-one".