145032317 has 2 divisors, whose sum is σ = 145032318. Its totient is φ = 145032316.

The previous prime is 145032311. The next prime is 145032323. The reversal of 145032317 is 713230541.

It is a balanced prime because it is at equal distance from previous prime (145032311) and next prime (145032323).

It can be written as a sum of positive squares in only one way, i.e., 130736356 + 14295961 = 11434^2 + 3781^2 .

It is an emirp because it is prime and its reverse (713230541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145032317 - 2¹⁶ = 144966781 is a prime.

It is equal to p_8180351 and since 145032317 and 8180351 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 (145032311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72516158 + 72516159.

It is an arithmetic number, because the mean of its divisors is an integer number (72516159).

Almost surely, 2^145032317 is an apocalyptic number.

It is an amenable number.

145032317 is a deficient number, since it is larger than the sum of its proper divisors (1).

145032317 is an equidigital number, since it uses as much as digits as its factorization.

145032317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 145032317 is about 12042.9363944181. The cubic root of 145032317 is about 525.3978142809.

Adding to 145032317 its reverse (713230541), we get a palindrome (858262858).

The spelling of 145032317 in words is "one hundred forty-five million, thirty-two thousand, three hundred seventeen".