1475449189 has 2 divisors, whose sum is σ = 1475449190. Its totient is φ = 1475449188.

The previous prime is 1475449187. The next prime is 1475449291. The reversal of 1475449189 is 9819445741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1472026689 + 3422500 = 38367^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1475449189 - 2¹ = 1475449187 is a prime.

It is a super-3 number, since 3×1475449189³ (a number of 28 digits) contains 333 as substring.

Together with 1475449187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1475449181) 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, 737724594 + 737724595.

It is an arithmetic number, because the mean of its divisors is an integer number (737724595).

Almost surely, 2^1475449189 is an apocalyptic number.

It is an amenable number.

1475449189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1475449189 is an equidigital number, since it uses as much as digits as its factorization.

1475449189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 1475449189 is about 38411.5762368586. The cubic root of 1475449189 is about 1138.4345983859.

The spelling of 1475449189 in words is "one billion, four hundred seventy-five million, four hundred forty-nine thousand, one hundred eighty-nine".