1351054645 has 4 divisors (see below), whose sum is σ = 1621265580. Its totient is φ = 1080843712.

The previous prime is 1351054637. The next prime is 1351054699. The reversal of 1351054645 is 5464501531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 413837649 + 937216996 = 20343^2 + 30614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351054645 - 2³ = 1351054637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351054645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135105460 + ... + 135105469.

It is an arithmetic number, because the mean of its divisors is an integer number (405316395).

Almost surely, 2^1351054645 is an apocalyptic number.

It is an amenable number.

1351054645 is a deficient number, since it is larger than the sum of its proper divisors (270210935).

1351054645 is an equidigital number, since it uses as much as digits as its factorization.

1351054645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270210934.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1351054645 is about 36756.6952404593. The cubic root of 1351054645 is about 1105.4971780418.

The spelling of 1351054645 in words is "one billion, three hundred fifty-one million, fifty-four thousand, six hundred forty-five".