1145030748581 has 8 divisors (see below), whose sum is σ = 1158129546840. Its totient is φ = 1131937134592.

The previous prime is 1145030748569. The next prime is 1145030748599. The reversal of 1145030748581 is 1858470305411.

It can be written as a sum of positive squares in 4 ways, for example, as 422284227556 + 722746521025 = 649834^2 + 850145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145030748581 - 2²⁶ = 1144963639717 is a prime.

It is a super-2 number, since 2×1145030748581² (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 (1145030745581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850940 + ... + 1736133.

It is an arithmetic number, because the mean of its divisors is an integer number (144766193355).

Almost surely, 2^{1145030748581} is an apocalyptic number.

It is an amenable number.

1145030748581 is a deficient number, since it is larger than the sum of its proper divisors (13098798259).

1145030748581 is an equidigital number, since it uses as much as digits as its factorization.

1145030748581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592135.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 1145030748581 in words is "one trillion, one hundred forty-five billion, thirty million, seven hundred forty-eight thousand, five hundred eighty-one".