1142269 has 2 divisors, whose sum is σ = 1142270. Its totient is φ = 1142268.

The previous prime is 1142263. The next prime is 1142279. The reversal of 1142269 is 9622411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 974169 + 168100 = 987^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142269 - 2⁵ = 1142237 is a prime.

It is a super-2 number, since 2×1142269² = 2609556936722, which contains 22 as substring.

1142269 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571134 + 571135.

It is an arithmetic number, because the mean of its divisors is an integer number (571135).

2^1142269 is an apocalyptic number.

It is an amenable number.

1142269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142269 is an equidigital number, since it uses as much as digits as its factorization.

1142269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 1142269 is about 1068.7698536168. The cubic root of 1142269 is about 104.5336536832.

The spelling of 1142269 in words is "one million, one hundred forty-two thousand, two hundred sixty-nine".