1921711041 has 32 divisors (see below), whose sum is σ = 2939596800. Its totient is φ = 1239960960.

The previous prime is 1921711039. The next prime is 1921711079. The reversal of 1921711041 is 1401171291.

It is not a de Polignac number, because 1921711041 - 2¹ = 1921711039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1921710996 and 1921711014.

It is not an unprimeable number, because it can be changed into a prime (1921711021) 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 31 ways as a sum of consecutive naturals, for example, 133755 + ... + 147423.

It is an arithmetic number, because the mean of its divisors is an integer number (91862400).

Almost surely, 2^1921711041 is an apocalyptic number.

It is an amenable number.

1921711041 is a deficient number, since it is larger than the sum of its proper divisors (1017885759).

1921711041 is a wasteful number, since it uses less digits than its factorization.

1921711041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846 (or 13840 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 1921711041 is about 43837.3247472973. The cubic root of 1921711041 is about 1243.2621012474.

The spelling of 1921711041 in words is "one billion, nine hundred twenty-one million, seven hundred eleven thousand, forty-one".