1135242469 has 2 divisors, whose sum is σ = 1135242470. Its totient is φ = 1135242468.

The previous prime is 1135242421. The next prime is 1135242553. The reversal of 1135242469 is 9642425311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1133197569 + 2044900 = 33663^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135242469 - 2⁷ = 1135242341 is a prime.

It is a super-2 number, since 2×1135242469² = 2577550926842431922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135242169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567621234 + 567621235.

It is an arithmetic number, because the mean of its divisors is an integer number (567621235).

Almost surely, 2^1135242469 is an apocalyptic number.

It is an amenable number.

1135242469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135242469 is an equidigital number, since it uses as much as digits as its factorization.

1135242469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 1135242469 is about 33693.3594199213. The cubic root of 1135242469 is about 1043.1887058988.

The spelling of 1135242469 in words is "one billion, one hundred thirty-five million, two hundred forty-two thousand, four hundred sixty-nine".