1148251612631 has 4 divisors (see below), whose sum is σ = 1185291987264. Its totient is φ = 1111211238000.

The previous prime is 1148251612603. The next prime is 1148251612639. The reversal of 1148251612631 is 1362161528411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1148251612631 - 2¹⁸ = 1148251350487 is a prime.

It is a super-2 number, since 2×1148251612631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148251612639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18520187270 + ... + 18520187331.

It is an arithmetic number, because the mean of its divisors is an integer number (296322996816).

Almost surely, 2^{1148251612631} is an apocalyptic number.

1148251612631 is a deficient number, since it is larger than the sum of its proper divisors (37040374633).

1148251612631 is an equidigital number, since it uses as much as digits as its factorization.

1148251612631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37040374632.

The product of its digits is 69120, while the sum is 41.

The spelling of 1148251612631 in words is "one trillion, one hundred forty-eight billion, two hundred fifty-one million, six hundred twelve thousand, six hundred thirty-one".