305406201 has 4 divisors (see below), whose sum is σ = 407208272. Its totient is φ = 203604132.

The previous prime is 305406181. The next prime is 305406217. The reversal of 305406201 is 102604503.

It is a happy number.

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 not a de Polignac number, because 305406201 - 2⁶ = 305406137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305406271) 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, 50901031 + ... + 50901036.

It is an arithmetic number, because the mean of its divisors is an integer number (101802068).

Almost surely, 2^305406201 is an apocalyptic number.

It is an amenable number.

305406201 is a deficient number, since it is larger than the sum of its proper divisors (101802071).

305406201 is a wasteful number, since it uses less digits than its factorization.

305406201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101802070.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 305406201 is about 17475.8748278877. The cubic root of 305406201 is about 673.4302441686.

The spelling of 305406201 in words is "three hundred five million, four hundred six thousand, two hundred one".