1125247658447 has 4 divisors (see below), whose sum is σ = 1227542900136. Its totient is φ = 1022952416760.

The previous prime is 1125247658443. The next prime is 1125247658473. The reversal of 1125247658447 is 7448567425211.

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 1125247658447 - 2² = 1125247658443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125247658392 and 1125247658401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125247658443) 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, 51147620828 + ... + 51147620849.

It is an arithmetic number, because the mean of its divisors is an integer number (306885725034).

Almost surely, 2^{1125247658447} is an apocalyptic number.

1125247658447 is a deficient number, since it is larger than the sum of its proper divisors (102295241689).

1125247658447 is a wasteful number, since it uses less digits than its factorization.

1125247658447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102295241688.

The product of its digits is 15052800, while the sum is 56.

The spelling of 1125247658447 in words is "one trillion, one hundred twenty-five billion, two hundred forty-seven million, six hundred fifty-eight thousand, four hundred forty-seven".