1054553121 has 8 divisors (see below), whose sum is σ = 1562300960. Its totient is φ = 703035396.

The previous prime is 1054553119. The next prime is 1054553141. The reversal of 1054553121 is 1213554501.

1054553121 is a `hidden beast` number, since 105 + 4 + 5 + 531 + 21 = 666.

It is not a de Polignac number, because 1054553121 - 2¹ = 1054553119 is a prime.

It is a super-2 number, since 2×1054553121² = 2224164570021681282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 39057523 = 1054553121 / (1 + 0 + 5 + 4 + 5 + 5 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054553111) 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, 19528735 + ... + 19528788.

It is an arithmetic number, because the mean of its divisors is an integer number (195287620).

Almost surely, 2^1054553121 is an apocalyptic number.

It is an amenable number.

1054553121 is a deficient number, since it is larger than the sum of its proper divisors (507747839).

1054553121 is an equidigital number, since it uses as much as digits as its factorization.

1054553121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39057532 (or 39057526 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1054553121 is about 32473.8836759634. The cubic root of 1054553121 is about 1017.8633734862.

The spelling of 1054553121 in words is "one billion, fifty-four million, five hundred fifty-three thousand, one hundred twenty-one".