1141947229 has 2 divisors, whose sum is σ = 1141947230. Its totient is φ = 1141947228.

The previous prime is 1141947227. The next prime is 1141947271. The reversal of 1141947229 is 9227491411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110888900 + 31058329 = 33330^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141947229 - 2¹ = 1141947227 is a prime.

Together with 1141947227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1141947191 and 1141947200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141947227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570973614 + 570973615.

It is an arithmetic number, because the mean of its divisors is an integer number (570973615).

Almost surely, 2^1141947229 is an apocalyptic number.

It is an amenable number.

1141947229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141947229 is an equidigital number, since it uses as much as digits as its factorization.

1141947229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 1141947229 is about 33792.7097019461. The cubic root of 1141947229 is about 1045.2383723973.

The spelling of 1141947229 in words is "one billion, one hundred forty-one million, nine hundred forty-seven thousand, two hundred twenty-nine".