1145889253 has 2 divisors, whose sum is σ = 1145889254. Its totient is φ = 1145889252.

The previous prime is 1145889247. The next prime is 1145889293. The reversal of 1145889253 is 3529885411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943595524 + 202293729 = 30718^2 + 14223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145889253 - 2⁹ = 1145888741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145889293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572944626 + 572944627.

It is an arithmetic number, because the mean of its divisors is an integer number (572944627).

Almost surely, 2^1145889253 is an apocalyptic number.

It is an amenable number.

1145889253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145889253 is an equidigital number, since it uses as much as digits as its factorization.

1145889253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 46.

The square root of 1145889253 is about 33850.9859974566. The cubic root of 1145889253 is about 1046.4397188154.

The spelling of 1145889253 in words is "one billion, one hundred forty-five million, eight hundred eighty-nine thousand, two hundred fifty-three".