145232005 has 8 divisors (see below), whose sum is σ = 181855872. Its totient is φ = 111133968.

The previous prime is 145231997. The next prime is 145232039. The reversal of 145232005 is 500232541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145232005 - 2³ = 145231997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631329 + ... + 631558.

It is an arithmetic number, because the mean of its divisors is an integer number (22731984).

Almost surely, 2^145232005 is an apocalyptic number.

It is an amenable number.

145232005 is a deficient number, since it is larger than the sum of its proper divisors (36623867).

145232005 is a wasteful number, since it uses less digits than its factorization.

145232005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262915.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 145232005 is about 12051.2242116724. The cubic root of 145232005 is about 525.6388353320.

Adding to 145232005 its reverse (500232541), we get a palindrome (645464546).

The spelling of 145232005 in words is "one hundred forty-five million, two hundred thirty-two thousand, five".