1072431505 has 8 divisors (see below), whose sum is σ = 1287498600. Its totient is φ = 857558016.

The previous prime is 1072431487. The next prime is 1072431509. The reversal of 1072431505 is 5051342701.

It is a happy number.

1072431505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 32748²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 1072431504 = 1^2 + 32748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1072431505 - 2⁵ = 1072431473 is a prime.

It is a super-3 number, since 3×1072431505³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1072431509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35920 + ... + 58609.

It is an arithmetic number, because the mean of its divisors is an integer number (160937325).

Almost surely, 2^1072431505 is an apocalyptic number.

It is an amenable number.

1072431505 is a deficient number, since it is larger than the sum of its proper divisors (215067095).

1072431505 is an equidigital number, since it uses as much as digits as its factorization.

1072431505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96803.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1072431505 is about 32748.0000152681. Note that the first 4 decimals coincide. The cubic root of 1072431505 is about 1023.5832912545.

The spelling of 1072431505 in words is "one billion, seventy-two million, four hundred thirty-one thousand, five hundred five".