1072456189 has 18 divisors (see below), whose sum is σ = 1270123134. Its totient is φ = 902669040.

The previous prime is 1072456181. The next prime is 1072456193. The reversal of 1072456189 is 9816542701.

It can be written as a sum of positive squares in only one way, i.e., 632924964 + 439531225 = 25158^2 + 20965^2 .

It is not a de Polignac number, because 1072456189 - 2³ = 1072456181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072456181) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1790112 + ... + 1790710.

Almost surely, 2^1072456189 is an apocalyptic number.

It is an amenable number.

1072456189 is a deficient number, since it is larger than the sum of its proper divisors (197666945).

1072456189 is an frugal number, since it uses more digits than its factorization.

1072456189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1072456189 is about 32748.3768910766. The cubic root of 1072456189 is about 1023.5911444168.

The spelling of 1072456189 in words is "one billion, seventy-two million, four hundred fifty-six thousand, one hundred eighty-nine".