1018920241 has 2 divisors, whose sum is σ = 1018920242. Its totient is φ = 1018920240.

The previous prime is 1018920173. The next prime is 1018920247. The reversal of 1018920241 is 1420298101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 690585841 + 328334400 = 26279^2 + 18120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018920241 - 2²⁵ = 985365809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1018920247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509460120 + 509460121.

It is an arithmetic number, because the mean of its divisors is an integer number (509460121).

Almost surely, 2^1018920241 is an apocalyptic number.

It is an amenable number.

1018920241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018920241 is an equidigital number, since it uses as much as digits as its factorization.

1018920241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1018920241 is about 31920.5300864506. The cubic root of 1018920241 is about 1006.2673848262.

The spelling of 1018920241 in words is "one billion, eighteen million, nine hundred twenty thousand, two hundred forty-one".