258019441 has 2 divisors, whose sum is σ = 258019442. Its totient is φ = 258019440.

The previous prime is 258019397. The next prime is 258019453. The reversal of 258019441 is 144910852.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256800625 + 1218816 = 16025^2 + 1104^2 .

It is a cyclic number.

It is not a de Polignac number, because 258019441 - 2¹¹ = 258017393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258019397 and 258019406.

It is not a weakly prime, because it can be changed into another prime (258019481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129009720 + 129009721.

It is an arithmetic number, because the mean of its divisors is an integer number (129009721).

Almost surely, 2^258019441 is an apocalyptic number.

It is an amenable number.

258019441 is a deficient number, since it is larger than the sum of its proper divisors (1).

258019441 is an equidigital number, since it uses as much as digits as its factorization.

258019441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 258019441 is about 16062.9835647055. The cubic root of 258019441 is about 636.6256657288.

The spelling of 258019441 in words is "two hundred fifty-eight million, nineteen thousand, four hundred forty-one".