5206706149 has 8 divisors (see below), whose sum is σ = 5233927320. Its totient is φ = 5179539456.

The previous prime is 5206706137. The next prime is 5206706159. The reversal of 5206706149 is 9416076025.

It can be written as a sum of positive squares in 4 ways, for example, as 751143649 + 4455562500 = 27407^2 + 66750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5206706149 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 (5206706159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185557 + ... + 211765.

It is an arithmetic number, because the mean of its divisors is an integer number (654240915).

Almost surely, 2^5206706149 is an apocalyptic number.

It is an amenable number.

5206706149 is a deficient number, since it is larger than the sum of its proper divisors (27221171).

5206706149 is a wasteful number, since it uses less digits than its factorization.

5206706149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27239.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 5206706149 is about 72157.5093042990. The cubic root of 5206706149 is about 1733.2226508179. Note that the first 3 decimals are identical.

The spelling of 5206706149 in words is "five billion, two hundred six million, seven hundred six thousand, one hundred forty-nine".