145118417 has 2 divisors, whose sum is σ = 145118418. Its totient is φ = 145118416.

The previous prime is 145118377. The next prime is 145118423. The reversal of 145118417 is 714811541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140754496 + 4363921 = 11864^2 + 2089^2 .

It is a cyclic number.

It is not a de Polignac number, because 145118417 - 2⁶ = 145118353 is a prime.

It is a Chen prime.

It is equal to p_8184902 and since 145118417 and 8184902 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (145112417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72559208 + 72559209.

It is an arithmetic number, because the mean of its divisors is an integer number (72559209).

Almost surely, 2^145118417 is an apocalyptic number.

It is an amenable number.

145118417 is a deficient number, since it is larger than the sum of its proper divisors (1).

145118417 is an equidigital number, since it uses as much as digits as its factorization.

145118417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 32.

The square root of 145118417 is about 12046.5105736060. The cubic root of 145118417 is about 525.5017630741.

Adding to 145118417 its reverse (714811541), we get a palindrome (859929958).

The spelling of 145118417 in words is "one hundred forty-five million, one hundred eighteen thousand, four hundred seventeen".