1081982901 has 16 divisors (see below), whose sum is σ = 1528243200. Its totient is φ = 678563328.

The previous prime is 1081982893. The next prime is 1081982917. The reversal of 1081982901 is 1092891801.

It is not a de Polignac number, because 1081982901 - 2³ = 1081982893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1081982901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081982201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143145 + ... + 150513.

It is an arithmetic number, because the mean of its divisors is an integer number (95515200).

Almost surely, 2^1081982901 is an apocalyptic number.

It is an amenable number.

1081982901 is a deficient number, since it is larger than the sum of its proper divisors (446260299).

1081982901 is a wasteful number, since it uses less digits than its factorization.

1081982901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268.

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 1081982901 is about 32893.5084933183. The cubic root of 1081982901 is about 1026.6130939302.

The spelling of 1081982901 in words is "one billion, eighty-one million, nine hundred eighty-two thousand, nine hundred one".