206501401 has 4 divisors (see below), whose sum is σ = 207174352. Its totient is φ = 205828452.

The previous prime is 206501389. The next prime is 206501411. The reversal of 206501401 is 104105602.

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 a cyclic number.

It is not a de Polignac number, because 206501401 - 2²³ = 198112793 is a prime.

It is a super-2 number, since 2×206501401² = 85285657229925602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206501411) 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, 336015 + ... + 336628.

It is an arithmetic number, because the mean of its divisors is an integer number (51793588).

Almost surely, 2^206501401 is an apocalyptic number.

It is an amenable number.

206501401 is a deficient number, since it is larger than the sum of its proper divisors (672951).

206501401 is an equidigital number, since it uses as much as digits as its factorization.

206501401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672950.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 206501401 is about 14370.1566101417. The cubic root of 206501401 is about 591.0728359055.

The spelling of 206501401 in words is "two hundred six million, five hundred one thousand, four hundred one".