247154275213 has 4 divisors (see below), whose sum is σ = 247320935008. Its totient is φ = 246987615420.

The previous prime is 247154275187. The next prime is 247154275223. The reversal of 247154275213 is 312572451742.

It is a happy number.

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 247154275213 - 2²¹ = 247152178061 is a prime.

It is a super-2 number, since 2×247154275213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247154275213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247154275223) 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, 83327673 + ... + 83330638.

It is an arithmetic number, because the mean of its divisors is an integer number (61830233752).

Almost surely, 2^247154275213 is an apocalyptic number.

It is an amenable number.

247154275213 is a deficient number, since it is larger than the sum of its proper divisors (166659795).

247154275213 is a wasteful number, since it uses less digits than its factorization.

247154275213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166659794.

The product of its digits is 470400, while the sum is 43.

The spelling of 247154275213 in words is "two hundred forty-seven billion, one hundred fifty-four million, two hundred seventy-five thousand, two hundred thirteen".