1489271557 has 8 divisors (see below), whose sum is σ = 1496511360. Its totient is φ = 1482045120.

The previous prime is 1489271533. The next prime is 1489271593. The reversal of 1489271557 is 7551729841.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1489271557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489271557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489271257) 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, 273453 + ... + 278845.

It is an arithmetic number, because the mean of its divisors is an integer number (187063920).

Almost surely, 2^1489271557 is an apocalyptic number.

It is an amenable number.

1489271557 is a deficient number, since it is larger than the sum of its proper divisors (7239803).

1489271557 is a wasteful number, since it uses less digits than its factorization.

1489271557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683.

The product of its digits is 705600, while the sum is 49.

The square root of 1489271557 is about 38591.0813142104. The cubic root of 1489271557 is about 1141.9785986606.

The spelling of 1489271557 in words is "one billion, four hundred eighty-nine million, two hundred seventy-one thousand, five hundred fifty-seven".