1489216357 has 4 divisors (see below), whose sum is σ = 1489492480. Its totient is φ = 1488940236.

The previous prime is 1489216349. The next prime is 1489216369. The reversal of 1489216357 is 7536129841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7536129841 = 467 ⋅16137323.

It is a cyclic number.

It is not a de Polignac number, because 1489216357 - 2³ = 1489216349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489216327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129807 + ... + 140812.

It is an arithmetic number, because the mean of its divisors is an integer number (372373120).

Almost surely, 2^1489216357 is an apocalyptic number.

It is an amenable number.

1489216357 is a deficient number, since it is larger than the sum of its proper divisors (276123).

1489216357 is an equidigital number, since it uses as much as digits as its factorization.

1489216357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276122.

The product of its digits is 362880, while the sum is 46.

The square root of 1489216357 is about 38590.3661164286. The cubic root of 1489216357 is about 1141.9644893024.

The spelling of 1489216357 in words is "one billion, four hundred eighty-nine million, two hundred sixteen thousand, three hundred fifty-seven".