1005412489 has 2 divisors, whose sum is σ = 1005412490. Its totient is φ = 1005412488.

The previous prime is 1005412483. The next prime is 1005412523. The reversal of 1005412489 is 9842145001.

It is a happy number.

It is an a-pointer prime, because the next prime (1005412523) can be obtained adding 1005412489 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542517264 + 462895225 = 23292^2 + 21515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005412489 - 2³ = 1005412481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005412481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502706244 + 502706245.

It is an arithmetic number, because the mean of its divisors is an integer number (502706245).

Almost surely, 2^1005412489 is an apocalyptic number.

It is an amenable number.

1005412489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005412489 is an equidigital number, since it uses as much as digits as its factorization.

1005412489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1005412489 is about 31708.2400804586. The cubic root of 1005412489 is about 1001.8009177483.

The spelling of 1005412489 in words is "one billion, five million, four hundred twelve thousand, four hundred eighty-nine".