1005054231 has 4 divisors (see below), whose sum is σ = 1340072312. Its totient is φ = 670036152.

The previous prime is 1005054223. The next prime is 1005054233. The reversal of 1005054231 is 1324505001.

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

It is not a de Polignac number, because 1005054231 - 2³ = 1005054223 is a prime.

It is a super-2 number, since 2×1005054231² = 2020268014502002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005054198 and 1005054207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005054233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167509036 + ... + 167509041.

It is an arithmetic number, because the mean of its divisors is an integer number (335018078).

Almost surely, 2^1005054231 is an apocalyptic number.

1005054231 is a deficient number, since it is larger than the sum of its proper divisors (335018081).

1005054231 is an equidigital number, since it uses as much as digits as its factorization.

1005054231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335018080.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1005054231 is about 31702.5902884922. The cubic root of 1005054231 is about 1001.6819132485.

Adding to 1005054231 its reverse (1324505001), we get a palindrome (2329559232).

The spelling of 1005054231 in words is "one billion, five million, fifty-four thousand, two hundred thirty-one".