145812253 has 2 divisors, whose sum is σ = 145812254. Its totient is φ = 145812252.

The previous prime is 145812239. The next prime is 145812299. The reversal of 145812253 is 352218541.

145812253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135559449 + 10252804 = 11643^2 + 3202^2 .

It is an emirp because it is prime and its reverse (352218541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145812253 is a prime.

It is a super-2 number, since 2×145812253² = 42522426249872018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145812223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72906126 + 72906127.

It is an arithmetic number, because the mean of its divisors is an integer number (72906127).

Almost surely, 2^145812253 is an apocalyptic number.

It is an amenable number.

145812253 is a deficient number, since it is larger than the sum of its proper divisors (1).

145812253 is an equidigital number, since it uses as much as digits as its factorization.

145812253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 31.

The square root of 145812253 is about 12075.2744482268. The cubic root of 145812253 is about 526.3379364938.

The spelling of 145812253 in words is "one hundred forty-five million, eight hundred twelve thousand, two hundred fifty-three".