1329225243 has 8 divisors (see below), whose sum is σ = 1788560400. Its totient is φ = 878020128.

The previous prime is 1329225221. The next prime is 1329225281. The reversal of 1329225243 is 3425229231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1329225243 - 2¹⁰ = 1329224219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1329225203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032128 + ... + 2032781.

It is an arithmetic number, because the mean of its divisors is an integer number (223570050).

Almost surely, 2^1329225243 is an apocalyptic number.

1329225243 is a deficient number, since it is larger than the sum of its proper divisors (459335157).

1329225243 is a wasteful number, since it uses less digits than its factorization.

1329225243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065021.

The product of its digits is 25920, while the sum is 33.

The square root of 1329225243 is about 36458.5414272157. The cubic root of 1329225243 is about 1099.5108687587.

The spelling of 1329225243 in words is "one billion, three hundred twenty-nine million, two hundred twenty-five thousand, two hundred forty-three".