145553445253 has 2 divisors, whose sum is σ = 145553445254. Its totient is φ = 145553445252.

The previous prime is 145553445223. The next prime is 145553445329. The reversal of 145553445253 is 352544355541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129393442369 + 16160002884 = 359713^2 + 127122^2 .

It is a cyclic number.

It is not a de Polignac number, because 145553445253 - 2²⁵ = 145519890821 is a prime.

It is a super-3 number, since 3×145553445253³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145553445223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72776722626 + 72776722627.

It is an arithmetic number, because the mean of its divisors is an integer number (72776722627).

Almost surely, 2^145553445253 is an apocalyptic number.

It is an amenable number.

145553445253 is a deficient number, since it is larger than the sum of its proper divisors (1).

145553445253 is an equidigital number, since it uses as much as digits as its factorization.

145553445253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600000, while the sum is 46.

The spelling of 145553445253 in words is "one hundred forty-five billion, five hundred fifty-three million, four hundred forty-five thousand, two hundred fifty-three".