1131645612248 has 8 divisors (see below), whose sum is σ = 2121835522980. Its totient is φ = 565822806120.

The previous prime is 1131645612247. The next prime is 1131645612257. The reversal of 1131645612248 is 8422165461311.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1131645612248² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131645612199 and 1131645612208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131645612247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70727850758 + ... + 70727850773.

Almost surely, 2^{1131645612248} is an apocalyptic number.

It is an amenable number.

1131645612248 is a deficient number, since it is larger than the sum of its proper divisors (990189910732).

1131645612248 is a wasteful number, since it uses less digits than its factorization.

1131645612248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141455701537 (or 141455701533 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The spelling of 1131645612248 in words is "one trillion, one hundred thirty-one billion, six hundred forty-five million, six hundred twelve thousand, two hundred forty-eight".