145417193 has 2 divisors, whose sum is σ = 145417194. Its totient is φ = 145417192.

The previous prime is 145417121. The next prime is 145417211. The reversal of 145417193 is 391714541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99760144 + 45657049 = 9988^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 145417193 - 2²² = 141222889 is a prime.

It is a super-2 number, since 2×145417193² = 42292320039998498, which contains 22 as substring.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is not a weakly prime, because it can be changed into another prime (145410193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72708596 + 72708597.

It is an arithmetic number, because the mean of its divisors is an integer number (72708597).

Almost surely, 2^145417193 is an apocalyptic number.

It is an amenable number.

145417193 is a deficient number, since it is larger than the sum of its proper divisors (1).

145417193 is an equidigital number, since it uses as much as digits as its factorization.

145417193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 145417193 is about 12058.9051327225. The cubic root of 145417193 is about 525.8621576860.

The spelling of 145417193 in words is "one hundred forty-five million, four hundred seventeen thousand, one hundred ninety-three".