145235533 has 2 divisors, whose sum is σ = 145235534. Its totient is φ = 145235532.

The previous prime is 145235507. The next prime is 145235537. The reversal of 145235533 is 335532541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77123524 + 68112009 = 8782^2 + 8253^2 .

It is an emirp because it is prime and its reverse (335532541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145235533 - 2⁹ = 145235021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145235495 and 145235504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145235537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72617766 + 72617767.

It is an arithmetic number, because the mean of its divisors is an integer number (72617767).

Almost surely, 2^145235533 is an apocalyptic number.

It is an amenable number.

145235533 is a deficient number, since it is larger than the sum of its proper divisors (1).

145235533 is an equidigital number, since it uses as much as digits as its factorization.

145235533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 31.

The square root of 145235533 is about 12051.3705859541. The cubic root of 145235533 is about 525.6430915995.

The spelling of 145235533 in words is "one hundred forty-five million, two hundred thirty-five thousand, five hundred thirty-three".