1455263889 has 16 divisors (see below), whose sum is σ = 2025600000. Its totient is φ = 927588816.

The previous prime is 1455263863. The next prime is 1455263891. The reversal of 1455263889 is 9883625541.

It is not a de Polignac number, because 1455263889 - 2²⁰ = 1454215313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1455263809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288612 + ... + 293610.

It is an arithmetic number, because the mean of its divisors is an integer number (126600000).

Almost surely, 2^1455263889 is an apocalyptic number.

It is an amenable number.

1455263889 is a deficient number, since it is larger than the sum of its proper divisors (570336111).

1455263889 is a wasteful number, since it uses less digits than its factorization.

1455263889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244.

The product of its digits is 2073600, while the sum is 51.

The square root of 1455263889 is about 38147.9211622337. The cubic root of 1455263889 is about 1133.2191830725.

The spelling of 1455263889 in words is "one billion, four hundred fifty-five million, two hundred sixty-three thousand, eight hundred eighty-nine".