1329954553 has 8 divisors (see below), whose sum is σ = 1388290176. Its totient is φ = 1271661600.

The previous prime is 1329954551. The next prime is 1329954559. The reversal of 1329954553 is 3554599231.

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

It is a cyclic number.

It is not a de Polignac number, because 1329954553 - 2¹ = 1329954551 is a prime.

It is a super-2 number, since 2×1329954553² = 3537558226090859618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1329954551) 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, 64333 + ... + 82453.

It is an arithmetic number, because the mean of its divisors is an integer number (173536272).

Almost surely, 2^1329954553 is an apocalyptic number.

It is an amenable number.

1329954553 is a deficient number, since it is larger than the sum of its proper divisors (58335623).

1329954553 is a wasteful number, since it uses less digits than its factorization.

1329954553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21335.

The product of its digits is 729000, while the sum is 46.

The square root of 1329954553 is about 36468.5419642738. The cubic root of 1329954553 is about 1099.7119226341.

The spelling of 1329954553 in words is "one billion, three hundred twenty-nine million, nine hundred fifty-four thousand, five hundred fifty-three".