1141969 has 2 divisors, whose sum is σ = 1141970. Its totient is φ = 1141968.

The previous prime is 1141967. The next prime is 1141999. The reversal of 1141969 is 9691411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 7744 = 1065^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141969 - 2¹ = 1141967 is a prime.

It is a super-2 number, since 2×1141969² = 2608186393922, which contains 22 as substring.

Together with 1141967, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1141969.

It is not a weakly prime, because it can be changed into another prime (1141963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570984 + 570985.

It is an arithmetic number, because the mean of its divisors is an integer number (570985).

2^1141969 is an apocalyptic number.

It is an amenable number.

1141969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141969 is an equidigital number, since it uses as much as digits as its factorization.

1141969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 31.

The square root of 1141969 is about 1068.6294961304. The cubic root of 1141969 is about 104.5245014777.

The spelling of 1141969 in words is "one million, one hundred forty-one thousand, nine hundred sixty-nine".