201623467 has 4 divisors (see below), whose sum is σ = 205913376. Its totient is φ = 197333560.

The previous prime is 201623453. The next prime is 201623479. The reversal of 201623467 is 764326102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201623467 - 2¹¹ = 201621419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201623437) 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, 2144884 + ... + 2144977.

It is an arithmetic number, because the mean of its divisors is an integer number (51478344).

Almost surely, 2^201623467 is an apocalyptic number.

201623467 is a deficient number, since it is larger than the sum of its proper divisors (4289909).

201623467 is an equidigital number, since it uses as much as digits as its factorization.

201623467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289908.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 201623467 is about 14199.4178401792. The cubic root of 201623467 is about 586.3816341301.

Adding to 201623467 its reverse (764326102), we get a palindrome (965949569).

The spelling of 201623467 in words is "two hundred one million, six hundred twenty-three thousand, four hundred sixty-seven".