253445341 has 2 divisors, whose sum is σ = 253445342. Its totient is φ = 253445340.

The previous prime is 253445321. The next prime is 253445359. The reversal of 253445341 is 143544352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184389241 + 69056100 = 13579^2 + 8310^2 .

It is a cyclic number.

It is not a de Polignac number, because 253445341 - 2¹⁵ = 253412573 is a prime.

It is equal to p_13857403 and since 253445341 and 13857403 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253445321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126722670 + 126722671.

It is an arithmetic number, because the mean of its divisors is an integer number (126722671).

Almost surely, 2^253445341 is an apocalyptic number.

It is an amenable number.

253445341 is a deficient number, since it is larger than the sum of its proper divisors (1).

253445341 is an equidigital number, since it uses as much as digits as its factorization.

253445341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 31.

The square root of 253445341 is about 15919.9667399150. The cubic root of 253445341 is about 632.8412369180.

Adding to 253445341 its reverse (143544352), we get a palindrome (396989693).

The spelling of 253445341 in words is "two hundred fifty-three million, four hundred forty-five thousand, three hundred forty-one".