163236253 has 2 divisors, whose sum is σ = 163236254. Its totient is φ = 163236252.

The previous prime is 163236247. The next prime is 163236259. The reversal of 163236253 is 352632361.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (163236247) and next prime (163236259).

It can be written as a sum of positive squares in only one way, i.e., 160858489 + 2377764 = 12683^2 + 1542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163236253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163236259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81618126 + 81618127.

It is an arithmetic number, because the mean of its divisors is an integer number (81618127).

Almost surely, 2^163236253 is an apocalyptic number.

It is an amenable number.

163236253 is a deficient number, since it is larger than the sum of its proper divisors (1).

163236253 is an equidigital number, since it uses as much as digits as its factorization.

163236253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 31.

The square root of 163236253 is about 12776.3943661739. The cubic root of 163236253 is about 546.5193448859.

The spelling of 163236253 in words is "one hundred sixty-three million, two hundred thirty-six thousand, two hundred fifty-three".