145235017 has 4 divisors (see below), whose sum is σ = 145260180. Its totient is φ = 145209856.

The previous prime is 145235003. The next prime is 145235021. The reversal of 145235017 is 710532541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118722816 + 26512201 = 10896^2 + 5149^2 .

It is a cyclic number.

It is not a de Polignac number, because 145235017 - 2⁷ = 145234889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145235117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873 + ... + 17065.

It is an arithmetic number, because the mean of its divisors is an integer number (36315045).

Almost surely, 2^145235017 is an apocalyptic number.

It is an amenable number.

145235017 is a deficient number, since it is larger than the sum of its proper divisors (25163).

145235017 is an equidigital number, since it uses as much as digits as its factorization.

145235017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25162.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 145235017 is about 12051.3491775817. The cubic root of 145235017 is about 525.6424690885.

Adding to 145235017 its reverse (710532541), we get a palindrome (855767558).

The spelling of 145235017 in words is "one hundred forty-five million, two hundred thirty-five thousand, seventeen".