1183145061 has 8 divisors (see below), whose sum is σ = 1802887744. Its totient is φ = 676082880.

The previous prime is 1183145059. The next prime is 1183145149. The reversal of 1183145061 is 1605413811.

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

It is not a de Polignac number, because 1183145061 - 2¹ = 1183145059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183145011) 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, 28170100 + ... + 28170141.

It is an arithmetic number, because the mean of its divisors is an integer number (225360968).

Almost surely, 2^1183145061 is an apocalyptic number.

It is an amenable number.

1183145061 is a deficient number, since it is larger than the sum of its proper divisors (619742683).

1183145061 is an equidigital number, since it uses as much as digits as its factorization.

1183145061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56340251.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1183145061 is about 34396.8757447533. The cubic root of 1183145061 is about 1057.6598013682.

Adding to 1183145061 its reverse (1605413811), we get a palindrome (2788558872).

The spelling of 1183145061 in words is "one billion, one hundred eighty-three million, one hundred forty-five thousand, sixty-one".