145542017 has 2 divisors, whose sum is σ = 145542018. Its totient is φ = 145542016.

The previous prime is 145542013. The next prime is 145542029. The reversal of 145542017 is 710245541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136445761 + 9096256 = 11681^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 145542017 - 2² = 145542013 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145542013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72771008 + 72771009.

It is an arithmetic number, because the mean of its divisors is an integer number (72771009).

Almost surely, 2^145542017 is an apocalyptic number.

It is an amenable number.

145542017 is a deficient number, since it is larger than the sum of its proper divisors (1).

145542017 is an equidigital number, since it uses as much as digits as its factorization.

145542017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 145542017 is about 12064.0796167797. The cubic root of 145542017 is about 526.0125787929.

Adding to 145542017 its reverse (710245541), we get a palindrome (855787558).

The spelling of 145542017 in words is "one hundred forty-five million, five hundred forty-two thousand, seventeen".