1054234721 has 2 divisors, whose sum is σ = 1054234722. Its totient is φ = 1054234720.

The previous prime is 1054234717. The next prime is 1054234751. The reversal of 1054234721 is 1274324501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 847450321 + 206784400 = 29111^2 + 14380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054234721 - 2² = 1054234717 is a prime.

It is a super-2 number, since 2×1054234721² = 2222821693923895682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1054234751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527117360 + 527117361.

It is an arithmetic number, because the mean of its divisors is an integer number (527117361).

Almost surely, 2^1054234721 is an apocalyptic number.

It is an amenable number.

1054234721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054234721 is an equidigital number, since it uses as much as digits as its factorization.

1054234721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1054234721 is about 32468.9809048575. The cubic root of 1054234721 is about 1017.7609224055.

The spelling of 1054234721 in words is "one billion, fifty-four million, two hundred thirty-four thousand, seven hundred twenty-one".