1969021141 has 8 divisors (see below), whose sum is σ = 2152099584. Its totient is φ = 1793415360.

The previous prime is 1969021133. The next prime is 1969021163. The reversal of 1969021141 is 1411209691.

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

It is a cyclic number.

It is not a de Polignac number, because 1969021141 - 2³ = 1969021133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1969021097 and 1969021106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969021111) 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 7 ways as a sum of consecutive naturals, for example, 1867615 + ... + 1868668.

It is an arithmetic number, because the mean of its divisors is an integer number (269012448).

Almost surely, 2^1969021141 is an apocalyptic number.

It is an amenable number.

1969021141 is a deficient number, since it is larger than the sum of its proper divisors (183078443).

1969021141 is a wasteful number, since it uses less digits than its factorization.

1969021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736331.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1969021141 is about 44373.6536809851. The cubic root of 1969021141 is about 1253.3820180572.

The spelling of 1969021141 in words is "one billion, nine hundred sixty-nine million, twenty-one thousand, one hundred forty-one".