145235417 has 4 divisors (see below), whose sum is σ = 147073920. Its totient is φ = 143396916.

The previous prime is 145235413. The next prime is 145235429. The reversal of 145235417 is 714532541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145235417 - 2² = 145235413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145235413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919133 + ... + 919290.

It is an arithmetic number, because the mean of its divisors is an integer number (36768480).

Almost surely, 2^145235417 is an apocalyptic number.

It is an amenable number.

145235417 is a deficient number, since it is larger than the sum of its proper divisors (1838503).

145235417 is an equidigital number, since it uses as much as digits as its factorization.

145235417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838502.

The product of its digits is 16800, while the sum is 32.

The square root of 145235417 is about 12051.3657732226. The cubic root of 145235417 is about 525.6429516553.

Adding to 145235417 its reverse (714532541), we get a palindrome (859767958).

The spelling of 145235417 in words is "one hundred forty-five million, two hundred thirty-five thousand, four hundred seventeen".