1146303552581 has 4 divisors (see below), whose sum is σ = 1250512966464. Its totient is φ = 1042094138700.

The previous prime is 1146303552577. The next prime is 1146303552599. The reversal of 1146303552581 is 1852553036411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1146303552581 - 2² = 1146303552577 is a prime.

It is a super-2 number, since 2×1146303552581² (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 (1146303582581) 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, 52104706925 + ... + 52104706946.

It is an arithmetic number, because the mean of its divisors is an integer number (312628241616).

Almost surely, 2^{1146303552581} is an apocalyptic number.

1146303552581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1146303552581 is a deficient number, since it is larger than the sum of its proper divisors (104209413883).

1146303552581 is a wasteful number, since it uses less digits than its factorization.

1146303552581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104209413882.

The product of its (nonzero) digits is 432000, while the sum is 44.

Adding to 1146303552581 its reverse (1852553036411), we get a palindrome (2998856588992).

The spelling of 1146303552581 in words is "one trillion, one hundred forty-six billion, three hundred three million, five hundred fifty-two thousand, five hundred eighty-one".