450000145 has 8 divisors (see below), whose sum is σ = 617143104. Its totient is φ = 308571504.

The previous prime is 450000143. The next prime is 450000181. The reversal of 450000145 is 541000054.

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 450000145 - 2¹ = 450000143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450000143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6428539 + ... + 6428608.

It is an arithmetic number, because the mean of its divisors is an integer number (77142888).

Almost surely, 2^450000145 is an apocalyptic number.

It is an amenable number.

450000145 is a deficient number, since it is larger than the sum of its proper divisors (167142959).

450000145 is a wasteful number, since it uses less digits than its factorization.

450000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12857159.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 450000145 is about 21213.2068532789. The cubic root of 450000145 is about 766.3095147009.

Adding to 450000145 its reverse (541000054), we get a palindrome (991000199).

Subtracting 450000145 from its reverse (541000054), we obtain a palindrome (90999909).

The spelling of 450000145 in words is "four hundred fifty million, one hundred forty-five", and thus it is an aban number.