1353445000 has 40 divisors (see below), whose sum is σ = 3171133350. Its totient is φ = 541376000.

The previous prime is 1353444979. The next prime is 1353445007. The reversal of 1353445000 is 5443531.

It can be written as a sum of positive squares in 5 ways, for example, as 276423876 + 1077021124 = 16626^2 + 32818^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1353445007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 130345 + ... + 140344.

Almost surely, 2^1353445000 is an apocalyptic number.

1353445000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1353445000 is an abundant number, since it is smaller than the sum of its proper divisors (1817688350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1353445000 is an equidigital number, since it uses as much as digits as its factorization.

1353445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270715 (or 270696 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1353445000 is about 36789.1967838386. The cubic root of 1353445000 is about 1106.1487613101.

Adding to 1353445000 its reverse (5443531), we get a palindrome (1358888531).

The spelling of 1353445000 in words is "one billion, three hundred fifty-three million, four hundred forty-five thousand".