1301321145 has 8 divisors (see below), whose sum is σ = 2082113856. Its totient is φ = 694037936.

The previous prime is 1301321143. The next prime is 1301321213. The reversal of 1301321145 is 5411231031.

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 1301321145 - 2¹ = 1301321143 is a prime.

It is a super-2 number, since 2×1301321145² = 3386873444848222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1301321143) 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, 43377357 + ... + 43377386.

It is an arithmetic number, because the mean of its divisors is an integer number (260264232).

Almost surely, 2^1301321145 is an apocalyptic number.

1301321145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301321145 is a deficient number, since it is larger than the sum of its proper divisors (780792711).

1301321145 is an equidigital number, since it uses as much as digits as its factorization.

1301321145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86754751.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1301321145 is about 36073.8290870265. The cubic root of 1301321145 is about 1091.7624728250.

Adding to 1301321145 its reverse (5411231031), we get a palindrome (6712552176).

The spelling of 1301321145 in words is "one billion, three hundred one million, three hundred twenty-one thousand, one hundred forty-five".