1254168089 has 2 divisors, whose sum is σ = 1254168090. Its totient is φ = 1254168088.

The previous prime is 1254168059. The next prime is 1254168101. The reversal of 1254168089 is 9808614521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107758089 + 146410000 = 33283^2 + 12100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254168089 - 2²⁰ = 1253119513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1254168029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627084044 + 627084045.

It is an arithmetic number, because the mean of its divisors is an integer number (627084045).

Almost surely, 2^1254168089 is an apocalyptic number.

It is an amenable number.

1254168089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254168089 is an equidigital number, since it uses as much as digits as its factorization.

1254168089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 1254168089 is about 35414.2356828437. The cubic root of 1254168089 is about 1078.4133334074.

The spelling of 1254168089 in words is "one billion, two hundred fifty-four million, one hundred sixty-eight thousand, eighty-nine".