1489755263 has 4 divisors (see below), whose sum is σ = 1489947960. Its totient is φ = 1489562568.

The previous prime is 1489755199. The next prime is 1489755283. The reversal of 1489755263 is 3625579841.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1489755263 - 2⁶ = 1489755199 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 (1489755283) 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, 84245 + ... + 100382.

It is an arithmetic number, because the mean of its divisors is an integer number (372486990).

Almost surely, 2^1489755263 is an apocalyptic number.

1489755263 is a deficient number, since it is larger than the sum of its proper divisors (192697).

1489755263 is an equidigital number, since it uses as much as digits as its factorization.

1489755263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192696.

The product of its digits is 1814400, while the sum is 50.

The square root of 1489755263 is about 38597.3478752103. The cubic root of 1489755263 is about 1142.1022210908.

The spelling of 1489755263 in words is "one billion, four hundred eighty-nine million, seven hundred fifty-five thousand, two hundred sixty-three".