1326523473 has 20 divisors (see below), whose sum is σ = 2161743408. Its totient is φ = 803953080.

The previous prime is 1326523463. The next prime is 1326523483. The reversal of 1326523473 is 3743256231.

1326523473 is a `hidden beast` number, since 132 + 6 + 52 + 3 + 473 = 666.

It is an interprime number because it is at equal distance from previous prime (1326523463) and next prime (1326523483).

It is not a de Polignac number, because 1326523473 - 2⁶ = 1326523409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1326523433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 743511 + ... + 745292.

Almost surely, 2^1326523473 is an apocalyptic number.

It is an amenable number.

1326523473 is a deficient number, since it is larger than the sum of its proper divisors (835219935).

1326523473 is a wasteful number, since it uses less digits than its factorization.

1326523473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488826 (or 1488817 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 1326523473 is about 36421.4699456241. The cubic root of 1326523473 is about 1098.7654118445.

The spelling of 1326523473 in words is "one billion, three hundred twenty-six million, five hundred twenty-three thousand, four hundred seventy-three".