1181466001 has 4 divisors (see below), whose sum is σ = 1232834112. Its totient is φ = 1130097892.

The previous prime is 1181465953. The next prime is 1181466019. The reversal of 1181466001 is 1006641811.

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: 1006641811 = 7 ⋅143805973.

It is a cyclic number.

It is not a de Polignac number, because 1181466001 - 2¹¹ = 1181463953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1181466071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25684021 + ... + 25684066.

It is an arithmetic number, because the mean of its divisors is an integer number (308208528).

Almost surely, 2^1181466001 is an apocalyptic number.

It is an amenable number.

1181466001 is a deficient number, since it is larger than the sum of its proper divisors (51368111).

1181466001 is an equidigital number, since it uses as much as digits as its factorization.

1181466001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51368110.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1181466001 is about 34372.4599206981. The cubic root of 1181466001 is about 1057.1592386266.

It can be divided in two parts, 11814 and 66001, that added together give a triangular number (77815 = T₃₉₄).

The spelling of 1181466001 in words is "one billion, one hundred eighty-one million, four hundred sixty-six thousand, one".