145548253 has 2 divisors, whose sum is σ = 145548254. Its totient is φ = 145548252.

The previous prime is 145548251. The next prime is 145548307. The reversal of 145548253 is 352845541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75290329 + 70257924 = 8677^2 + 8382^2 .

It is a cyclic number.

It is not a de Polignac number, because 145548253 - 2¹ = 145548251 is a prime.

Together with 145548251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145548251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72774126 + 72774127.

It is an arithmetic number, because the mean of its divisors is an integer number (72774127).

Almost surely, 2^145548253 is an apocalyptic number.

It is an amenable number.

145548253 is a deficient number, since it is larger than the sum of its proper divisors (1).

145548253 is an equidigital number, since it uses as much as digits as its factorization.

145548253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 37.

The square root of 145548253 is about 12064.3380672128. The cubic root of 145548253 is about 526.0200913259.

The spelling of 145548253 in words is "one hundred forty-five million, five hundred forty-eight thousand, two hundred fifty-three".