258161747 has 2 divisors, whose sum is σ = 258161748. Its totient is φ = 258161746.

The previous prime is 258161719. The next prime is 258161749. The reversal of 258161747 is 747161852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258161747 - 2¹² = 258157651 is a prime.

It is a super-2 number, since 2×258161747² = 133294975228184018, which contains 22 as substring.

Together with 258161749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258161749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129080873 + 129080874.

It is an arithmetic number, because the mean of its divisors is an integer number (129080874).

Almost surely, 2^258161747 is an apocalyptic number.

258161747 is a deficient number, since it is larger than the sum of its proper divisors (1).

258161747 is an equidigital number, since it uses as much as digits as its factorization.

258161747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 258161747 is about 16067.4125795039. The cubic root of 258161747 is about 636.7426840451.

The spelling of 258161747 in words is "two hundred fifty-eight million, one hundred sixty-one thousand, seven hundred forty-seven".