1001420513 has 8 divisors (see below), whose sum is σ = 1060695720. Its totient is φ = 942186240.

The previous prime is 1001420471. The next prime is 1001420521. The reversal of 1001420513 is 3150241001.

It can be written as a sum of positive squares in 4 ways, for example, as 278455969 + 722964544 = 16687^2 + 26888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001420513 - 2¹⁸ = 1001158369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001420491 and 1001420500.

It is not an unprimeable number, because it can be changed into a prime (1001420573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50483 + ... + 67463.

It is an arithmetic number, because the mean of its divisors is an integer number (132586965).

Almost surely, 2^1001420513 is an apocalyptic number.

It is an amenable number.

1001420513 is a deficient number, since it is larger than the sum of its proper divisors (59275207).

1001420513 is a wasteful number, since it uses less digits than its factorization.

1001420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20467.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1001420513 is about 31645.2289136925. The cubic root of 1001420513 is about 1000.4732803038.

Adding to 1001420513 its reverse (3150241001), we get a palindrome (4151661514).

The spelling of 1001420513 in words is "one billion, one million, four hundred twenty thousand, five hundred thirteen".