145228473253 has 2 divisors, whose sum is σ = 145228473254. Its totient is φ = 145228473252.

The previous prime is 145228473161. The next prime is 145228473259. The reversal of 145228473253 is 352374822541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92417216004 + 52811257249 = 304002^2 + 229807^2 .

It is a cyclic number.

It is not a de Polignac number, because 145228473253 - 2²⁵ = 145194918821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145228473259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72614236626 + 72614236627.

It is an arithmetic number, because the mean of its divisors is an integer number (72614236627).

Almost surely, 2^145228473253 is an apocalyptic number.

It is an amenable number.

145228473253 is a deficient number, since it is larger than the sum of its proper divisors (1).

145228473253 is an equidigital number, since it uses as much as digits as its factorization.

145228473253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 46.

The spelling of 145228473253 in words is "one hundred forty-five billion, two hundred twenty-eight million, four hundred seventy-three thousand, two hundred fifty-three".