1969541 has 4 divisors (see below), whose sum is σ = 2250912. Its totient is φ = 1688172.

The previous prime is 1969531. The next prime is 1969543. The reversal of 1969541 is 1459691.

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.

It is a cyclic number.

It is not a de Polignac number, because 1969541 - 2¹⁴ = 1953157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969543) 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, 140675 + ... + 140688.

It is an arithmetic number, because the mean of its divisors is an integer number (562728).

2^1969541 is an apocalyptic number.

It is an amenable number.

1969541 is a deficient number, since it is larger than the sum of its proper divisors (281371).

1969541 is an equidigital number, since it uses as much as digits as its factorization.

1969541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281370.

The product of its digits is 9720, while the sum is 35.

The square root of 1969541 is about 1403.4033632566. The cubic root of 1969541 is about 125.3492313908.

The spelling of 1969541 in words is "one million, nine hundred sixty-nine thousand, five hundred forty-one".