1054641817 has 8 divisors (see below), whose sum is σ = 1071477000. Its totient is φ = 1037937024.

The previous prime is 1054641781. The next prime is 1054641827. The reversal of 1054641817 is 7181464501.

It can be written as a sum of positive squares in 4 ways, for example, as 238054041 + 816587776 = 15429^2 + 28576^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054641817 is a prime.

It is a super-2 number, since 2×1054641817² = 2224538724330122978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054641827) 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, 16228 + ... + 48709.

It is an arithmetic number, because the mean of its divisors is an integer number (133934625).

Almost surely, 2^1054641817 is an apocalyptic number.

It is an amenable number.

1054641817 is a deficient number, since it is larger than the sum of its proper divisors (16835183).

1054641817 is a wasteful number, since it uses less digits than its factorization.

1054641817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65195.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1054641817 is about 32475.2492985042. The cubic root of 1054641817 is about 1017.8919093899.

The spelling of 1054641817 in words is "one billion, fifty-four million, six hundred forty-one thousand, eight hundred seventeen".