1000225541 has 16 divisors (see below), whose sum is σ = 1198848000. Its totient is φ = 815913648.

The previous prime is 1000225519. The next prime is 1000225561. The reversal of 1000225541 is 1455220001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000225541 is a prime.

It is a super-2 number, since 2×1000225541² = 2000902265737485362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000225561) 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 15 ways as a sum of consecutive naturals, for example, 16430 + ... + 47648.

It is an arithmetic number, because the mean of its divisors is an integer number (74928000).

Almost surely, 2^1000225541 is an apocalyptic number.

It is an amenable number.

1000225541 is a deficient number, since it is larger than the sum of its proper divisors (198622459).

1000225541 is a wasteful number, since it uses less digits than its factorization.

1000225541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31448.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1000225541 is about 31626.3425169589. The cubic root of 1000225541 is about 1000.0751746820.

Adding to 1000225541 its reverse (1455220001), we get a palindrome (2455445542).

The spelling of 1000225541 in words is "one billion, two hundred twenty-five thousand, five hundred forty-one".