1004535401 has 4 divisors (see below), whose sum is σ = 1004602500. Its totient is φ = 1004468304.

The previous prime is 1004535397. The next prime is 1004535409. The reversal of 1004535401 is 1045354001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1045354001 = 281 ⋅3720121.

It can be written as a sum of positive squares in 2 ways, for example, as 646379776 + 358155625 = 25424^2 + 18925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004535401 - 2² = 1004535397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1004535409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 44823.

It is an arithmetic number, because the mean of its divisors is an integer number (251150625).

Almost surely, 2^1004535401 is an apocalyptic number.

It is an amenable number.

1004535401 is a deficient number, since it is larger than the sum of its proper divisors (67099).

1004535401 is an equidigital number, since it uses as much as digits as its factorization.

1004535401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67098.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1004535401 is about 31694.4064623397. The cubic root of 1004535401 is about 1001.5095205345.

Adding to 1004535401 its reverse (1045354001), we get a palindrome (2049889402).

The spelling of 1004535401 in words is "one billion, four million, five hundred thirty-five thousand, four hundred one".