1353273645 has 32 divisors (see below), whose sum is σ = 2219519232. Its totient is φ = 703818752.

The previous prime is 1353273641. The next prime is 1353273667. The reversal of 1353273645 is 5463723531.

It is a cyclic number.

It is not a de Polignac number, because 1353273645 - 2² = 1353273641 is a prime.

It is a super-3 number, since 3×1353273645³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353273641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127669 + ... + 137861.

It is an arithmetic number, because the mean of its divisors is an integer number (69359976).

Almost surely, 2^1353273645 is an apocalyptic number.

1353273645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1353273645 is a deficient number, since it is larger than the sum of its proper divisors (866245587).

1353273645 is a wasteful number, since it uses less digits than its factorization.

1353273645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421.

The product of its digits is 226800, while the sum is 39.

The square root of 1353273645 is about 36786.8678335082. The cubic root of 1353273645 is about 1106.1020774476.

The spelling of 1353273645 in words is "one billion, three hundred fifty-three million, two hundred seventy-three thousand, six hundred forty-five".