1326145205 has 64 divisors (see below), whose sum is σ = 2103252480. Its totient is φ = 778444800.

The previous prime is 1326145181. The next prime is 1326145243. The reversal of 1326145205 is 5025416231.

It is not a de Polignac number, because 1326145205 - 2¹² = 1326141109 is a prime.

It is a super-2 number, since 2×1326145205² = 3517322209488984050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 456317 + ... + 459213.

It is an arithmetic number, because the mean of its divisors is an integer number (32863320).

Almost surely, 2^1326145205 is an apocalyptic number.

It is an amenable number.

1326145205 is a deficient number, since it is larger than the sum of its proper divisors (777107275).

1326145205 is a wasteful number, since it uses less digits than its factorization.

1326145205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1326145205 is about 36416.2766493226. The cubic root of 1326145205 is about 1098.6609615487.

The spelling of 1326145205 in words is "one billion, three hundred twenty-six million, one hundred forty-five thousand, two hundred five".