201930469 has 4 divisors (see below), whose sum is σ = 217463596. Its totient is φ = 186397344.

The previous prime is 201930467. The next prime is 201930479. The reversal of 201930469 is 964039102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75030244 + 126900225 = 8662^2 + 11265^2 .

It is a cyclic number.

It is not a de Polignac number, because 201930469 - 2¹ = 201930467 is a prime.

It is a super-2 number, since 2×201930469² = 81551828621119922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201930467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7766544 + ... + 7766569.

It is an arithmetic number, because the mean of its divisors is an integer number (54365899).

Almost surely, 2^201930469 is an apocalyptic number.

It is an amenable number.

201930469 is a deficient number, since it is larger than the sum of its proper divisors (15533127).

201930469 is a wasteful number, since it uses less digits than its factorization.

201930469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15533126.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 201930469 is about 14210.2241009774. The cubic root of 201930469 is about 586.6791012272.

The spelling of 201930469 in words is "two hundred one million, nine hundred thirty thousand, four hundred sixty-nine".