1054390243 has 2 divisors, whose sum is σ = 1054390244. Its totient is φ = 1054390242.

The previous prime is 1054390217. The next prime is 1054390261. The reversal of 1054390243 is 3420934501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054390243 is a prime.

It is a super-2 number, since 2×1054390243² = 2223477569067198098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054390213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527195121 + 527195122.

It is an arithmetic number, because the mean of its divisors is an integer number (527195122).

Almost surely, 2^1054390243 is an apocalyptic number.

1054390243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054390243 is an equidigital number, since it uses as much as digits as its factorization.

1054390243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1054390243 is about 32471.3757484958. The cubic root of 1054390243 is about 1017.8109670582.

The spelling of 1054390243 in words is "one billion, fifty-four million, three hundred ninety thousand, two hundred forty-three".