305145001 has 24 divisors (see below), whose sum is σ = 369212256. Its totient is φ = 251254080.

The previous prime is 305144993. The next prime is 305145013. The reversal of 305145001 is 100541503.

It is not a de Polignac number, because 305145001 - 2³ = 305144993 is a prime.

It is a super-2 number, since 2×305145001² = 186226943270580002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305145001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305145041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133470 + ... + 135736.

It is an arithmetic number, because the mean of its divisors is an integer number (15383844).

Almost surely, 2^305145001 is an apocalyptic number.

It is an amenable number.

305145001 is a deficient number, since it is larger than the sum of its proper divisors (64067255).

305145001 is a wasteful number, since it uses less digits than its factorization.

305145001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 305145001 is about 17468.4000698404. The cubic root of 305145001 is about 673.2382046822.

Adding to 305145001 its reverse (100541503), we get a palindrome (405686504).

The spelling of 305145001 in words is "three hundred five million, one hundred forty-five thousand, one".