1245353189 has 2 divisors, whose sum is σ = 1245353190. Its totient is φ = 1245353188.

The previous prime is 1245353167. The next prime is 1245353201. The reversal of 1245353189 is 9813535421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092633025 + 152720164 = 33055^2 + 12358^2 .

It is an emirp because it is prime and its reverse (9813535421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1245353189 - 2¹⁶ = 1245287653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245353159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622676594 + 622676595.

It is an arithmetic number, because the mean of its divisors is an integer number (622676595).

Almost surely, 2^1245353189 is an apocalyptic number.

It is an amenable number.

1245353189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245353189 is an equidigital number, since it uses as much as digits as its factorization.

1245353189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 1245353189 is about 35289.5620403541. The cubic root of 1245353189 is about 1075.8808540909.

The spelling of 1245353189 in words is "one billion, two hundred forty-five million, three hundred fifty-three thousand, one hundred eighty-nine".