145313417 has 2 divisors, whose sum is σ = 145313418. Its totient is φ = 145313416.

The previous prime is 145313353. The next prime is 145313429. The reversal of 145313417 is 714313541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 3798601 = 11896^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 145313417 - 2⁶ = 145313353 is a prime.

It is a super-2 number, since 2×145313417² = 42231978320431778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145313417.

It is not a weakly prime, because it can be changed into another prime (145313437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72656708 + 72656709.

It is an arithmetic number, because the mean of its divisors is an integer number (72656709).

Almost surely, 2^145313417 is an apocalyptic number.

It is an amenable number.

145313417 is a deficient number, since it is larger than the sum of its proper divisors (1).

145313417 is an equidigital number, since it uses as much as digits as its factorization.

145313417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 145313417 is about 12054.6014865694. The cubic root of 145313417 is about 525.7370352552.

Adding to 145313417 its reverse (714313541), we get a palindrome (859626958).

The spelling of 145313417 in words is "one hundred forty-five million, three hundred thirteen thousand, four hundred seventeen".