247113261145 has 16 divisors (see below), whose sum is σ = 313993075968. Its totient is φ = 186053528320.

The previous prime is 247113261139. The next prime is 247113261163. The reversal of 247113261145 is 541162311742.

It is not a de Polignac number, because 247113261145 - 2⁹ = 247113260633 is a prime.

It is a super-2 number, since 2×247113261145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2443230 + ... + 2542360.

It is an arithmetic number, because the mean of its divisors is an integer number (19624567248).

Almost surely, 2^247113261145 is an apocalyptic number.

It is an amenable number.

247113261145 is a deficient number, since it is larger than the sum of its proper divisors (66879814823).

247113261145 is a wasteful number, since it uses less digits than its factorization.

247113261145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128480.

The product of its digits is 40320, while the sum is 37.

Adding to 247113261145 its reverse (541162311742), we get a palindrome (788275572887).

The spelling of 247113261145 in words is "two hundred forty-seven billion, one hundred thirteen million, two hundred sixty-one thousand, one hundred forty-five".