206106437 has 4 divisors (see below), whose sum is σ = 207174540. Its totient is φ = 205038336.

The previous prime is 206106409. The next prime is 206106443. The reversal of 206106437 is 734601602.

206106437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45171841 + 160934596 = 6721^2 + 12686^2 .

It is a cyclic number.

It is not a de Polignac number, because 206106437 - 2¹² = 206102341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206106337) 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, 533762 + ... + 534147.

It is an arithmetic number, because the mean of its divisors is an integer number (51793635).

Almost surely, 2^206106437 is an apocalyptic number.

It is an amenable number.

206106437 is a deficient number, since it is larger than the sum of its proper divisors (1068103).

206106437 is a wasteful number, since it uses less digits than its factorization.

206106437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068102.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 206106437 is about 14356.4075241684. The cubic root of 206106437 is about 590.6957577742.

The spelling of 206106437 in words is "two hundred six million, one hundred six thousand, four hundred thirty-seven".