1489993163 has 4 divisors (see below), whose sum is σ = 1490995320. Its totient is φ = 1488991008.

The previous prime is 1489993157. The next prime is 1489993171. The reversal of 1489993163 is 3613999841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3613999841 = 37957 ⋅95213.

It is a cyclic number.

It is not a de Polignac number, because 1489993163 - 2⁴ = 1489993147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1489993123) 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, 498845 + ... + 501822.

It is an arithmetic number, because the mean of its divisors is an integer number (372748830).

Almost surely, 2^1489993163 is an apocalyptic number.

1489993163 is a deficient number, since it is larger than the sum of its proper divisors (1002157).

1489993163 is a wasteful number, since it uses less digits than its factorization.

1489993163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002156.

The product of its digits is 1259712, while the sum is 53.

The square root of 1489993163 is about 38600.4295701486. The cubic root of 1489993163 is about 1142.1630122072.

The spelling of 1489993163 in words is "one billion, four hundred eighty-nine million, nine hundred ninety-three thousand, one hundred sixty-three".