145543234901 has 2 divisors, whose sum is σ = 145543234902. Its totient is φ = 145543234900.

The previous prime is 145543234849. The next prime is 145543234919. The reversal of 145543234901 is 109432345541.

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., 141130954276 + 4412280625 = 375674^2 + 66425^2 .

It is a cyclic number.

It is not a de Polignac number, because 145543234901 - 2¹⁰ = 145543233877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145543234961) 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, 72771617450 + 72771617451.

It is an arithmetic number, because the mean of its divisors is an integer number (72771617451).

Almost surely, 2^145543234901 is an apocalyptic number.

It is an amenable number.

145543234901 is a deficient number, since it is larger than the sum of its proper divisors (1).

145543234901 is an equidigital number, since it uses as much as digits as its factorization.

145543234901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 145543234901 in words is "one hundred forty-five billion, five hundred forty-three million, two hundred thirty-four thousand, nine hundred one".