1478913369 has 4 divisors (see below), whose sum is σ = 1971884496. Its totient is φ = 985942244.

The previous prime is 1478913367. The next prime is 1478913383. The reversal of 1478913369 is 9633198741.

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: 9633198741 = 3 ⋅3211066247.

It is a cyclic number.

It is not a de Polignac number, because 1478913369 - 2¹ = 1478913367 is a prime.

It is a super-2 number, since 2×1478913369² = 4374369506013860322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1478913367) 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, 246485559 + ... + 246485564.

It is an arithmetic number, because the mean of its divisors is an integer number (492971124).

Almost surely, 2^1478913369 is an apocalyptic number.

It is an amenable number.

1478913369 is a deficient number, since it is larger than the sum of its proper divisors (492971127).

1478913369 is an equidigital number, since it uses as much as digits as its factorization.

1478913369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492971126.

The product of its digits is 979776, while the sum is 51.

The square root of 1478913369 is about 38456.6427161810. The cubic root of 1478913369 is about 1139.3248718782.

The spelling of 1478913369 in words is "one billion, four hundred seventy-eight million, nine hundred thirteen thousand, three hundred sixty-nine".