1146251141 has 4 divisors (see below), whose sum is σ = 1310001312. Its totient is φ = 982500972.

The previous prime is 1146251137. The next prime is 1146251143. The reversal of 1146251141 is 1411526411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1411526411 = 4831 ⋅292181.

It is a cyclic number.

It is not a de Polignac number, because 1146251141 - 2² = 1146251137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146251141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146251143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81875075 + ... + 81875088.

It is an arithmetic number, because the mean of its divisors is an integer number (327500328).

Almost surely, 2^1146251141 is an apocalyptic number.

It is an amenable number.

1146251141 is a deficient number, since it is larger than the sum of its proper divisors (163750171).

1146251141 is an equidigital number, since it uses as much as digits as its factorization.

1146251141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163750170.

The product of its digits is 960, while the sum is 26.

The square root of 1146251141 is about 33856.3308850797. The cubic root of 1146251141 is about 1046.5498673652.

Adding to 1146251141 its reverse (1411526411), we get a palindrome (2557777552).

The spelling of 1146251141 in words is "one billion, one hundred forty-six million, two hundred fifty-one thousand, one hundred forty-one".