1489967057 has 4 divisors (see below), whose sum is σ = 1577612196. Its totient is φ = 1402321920.

The previous prime is 1489967053. The next prime is 1489967077. The reversal of 1489967057 is 7507699841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1007681536 + 482285521 = 31744^2 + 21961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489967057 - 2² = 1489967053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1489966993 and 1489967011.

It is not an unprimeable number, because it can be changed into a prime (1489967051) 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 in 3 ways as a sum of consecutive naturals, for example, 43822544 + ... + 43822577.

It is an arithmetic number, because the mean of its divisors is an integer number (394403049).

Almost surely, 2^1489967057 is an apocalyptic number.

1489967057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1489967057 is a deficient number, since it is larger than the sum of its proper divisors (87645139).

1489967057 is an equidigital number, since it uses as much as digits as its factorization.

1489967057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87645138.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 1489967057 is about 38600.0914118089. The cubic root of 1489967057 is about 1142.1563415990.

The spelling of 1489967057 in words is "one billion, four hundred eighty-nine million, nine hundred sixty-seven thousand, fifty-seven".