1478596913 has 4 divisors (see below), whose sum is σ = 1565573220. Its totient is φ = 1391620608.

The previous prime is 1478596907. The next prime is 1478596957. The reversal of 1478596913 is 3196958741.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1130102689 + 348494224 = 33617^2 + 18668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478596913 - 2¹⁶ = 1478531377 is a prime.

It is a super-2 number, since 2×1478596913² = 4372497662266259138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478596993) 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, 43488128 + ... + 43488161.

It is an arithmetic number, because the mean of its divisors is an integer number (391393305).

Almost surely, 2^1478596913 is an apocalyptic number.

It is an amenable number.

1478596913 is a deficient number, since it is larger than the sum of its proper divisors (86976307).

1478596913 is an equidigital number, since it uses as much as digits as its factorization.

1478596913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86976306.

The product of its digits is 1632960, while the sum is 53.

The square root of 1478596913 is about 38452.5280443302. The cubic root of 1478596913 is about 1139.2436023193.

The spelling of 1478596913 in words is "one billion, four hundred seventy-eight million, five hundred ninety-six thousand, nine hundred thirteen".