145741117 has 2 divisors, whose sum is σ = 145741118. Its totient is φ = 145741116.

The previous prime is 145741103. The next prime is 145741121. The reversal of 145741117 is 711147541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127712601 + 18028516 = 11301^2 + 4246^2 .

It is a cyclic number.

It is not a de Polignac number, because 145741117 - 2⁷ = 145740989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145741177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72870558 + 72870559.

It is an arithmetic number, because the mean of its divisors is an integer number (72870559).

Almost surely, 2^145741117 is an apocalyptic number.

It is an amenable number.

145741117 is a deficient number, since it is larger than the sum of its proper divisors (1).

145741117 is an equidigital number, since it uses as much as digits as its factorization.

145741117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 31.

The square root of 145741117 is about 12072.3285657739. The cubic root of 145741117 is about 526.2523294545.

Adding to 145741117 its reverse (711147541), we get a palindrome (856888658).

The spelling of 145741117 in words is "one hundred forty-five million, seven hundred forty-one thousand, one hundred seventeen".