145523041 has 2 divisors, whose sum is σ = 145523042. Its totient is φ = 145523040.

The previous prime is 145523039. The next prime is 145523069. The reversal of 145523041 is 140325541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93683041 + 51840000 = 9679^2 + 7200^2 .

It is a cyclic number.

It is not a de Polignac number, because 145523041 - 2¹ = 145523039 is a prime.

Together with 145523039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 145522997 and 145523015.

It is not a weakly prime, because it can be changed into another prime (145523011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72761520 + 72761521.

It is an arithmetic number, because the mean of its divisors is an integer number (72761521).

Almost surely, 2^145523041 is an apocalyptic number.

It is an amenable number.

145523041 is a deficient number, since it is larger than the sum of its proper divisors (1).

145523041 is an equidigital number, since it uses as much as digits as its factorization.

145523041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145523041 is about 12063.2931241846. The cubic root of 145523041 is about 525.9897170133.

Adding to 145523041 its reverse (140325541), we get a palindrome (285848582).

The spelling of 145523041 in words is "one hundred forty-five million, five hundred twenty-three thousand, forty-one".