1054540321 has 2 divisors, whose sum is σ = 1054540322. Its totient is φ = 1054540320.

The previous prime is 1054540313. The next prime is 1054540343. The reversal of 1054540321 is 1230454501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001089600 + 53450721 = 31640^2 + 7311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054540321 - 2³ = 1054540313 is a prime.

It is a super-2 number, since 2×1054540321² = 2224110577229566082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054540301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527270160 + 527270161.

It is an arithmetic number, because the mean of its divisors is an integer number (527270161).

Almost surely, 2^1054540321 is an apocalyptic number.

It is an amenable number.

1054540321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054540321 is an equidigital number, since it uses as much as digits as its factorization.

1054540321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1054540321 is about 32473.6865939179. The cubic root of 1054540321 is about 1017.8592552477.

Adding to 1054540321 its reverse (1230454501), we get a palindrome (2284994822).

The spelling of 1054540321 in words is "one billion, fifty-four million, five hundred forty thousand, three hundred twenty-one".