1142454169 has 2 divisors, whose sum is σ = 1142454170. Its totient is φ = 1142454168.

The previous prime is 1142454151. The next prime is 1142454223. The reversal of 1142454169 is 9614542411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725763600 + 416690569 = 26940^2 + 20413^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142454169 - 2⁷ = 1142454041 is a prime.

It is a super-2 number, since 2×1142454169² = 2610403056530961122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1142454109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571227084 + 571227085.

It is an arithmetic number, because the mean of its divisors is an integer number (571227085).

Almost surely, 2^1142454169 is an apocalyptic number.

It is an amenable number.

1142454169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142454169 is an equidigital number, since it uses as much as digits as its factorization.

1142454169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 1142454169 is about 33800.2095999418. The cubic root of 1142454169 is about 1045.3930189922.

The spelling of 1142454169 in words is "one billion, one hundred forty-two million, four hundred fifty-four thousand, one hundred sixty-nine".