1481109001 has 4 divisors (see below), whose sum is σ = 1521139012. Its totient is φ = 1441078992.

The previous prime is 1481108983. The next prime is 1481109011. The reversal of 1481109001 is 1009011841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1009011841 = 6793 ⋅148537.

It can be written as a sum of positive squares in 2 ways, for example, as 819333376 + 661775625 = 28624^2 + 25725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481109001 - 2¹⁹ = 1480584713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1481109011) 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, 20014950 + ... + 20015023.

It is an arithmetic number, because the mean of its divisors is an integer number (380284753).

Almost surely, 2^1481109001 is an apocalyptic number.

It is an amenable number.

1481109001 is a deficient number, since it is larger than the sum of its proper divisors (40030011).

1481109001 is an equidigital number, since it uses as much as digits as its factorization.

1481109001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40030010.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1481109001 is about 38485.1789784067. The cubic root of 1481109001 is about 1139.8884165434. Note that the first 3 decimals are identical.

The spelling of 1481109001 in words is "one billion, four hundred eighty-one million, one hundred nine thousand, one".