145512533 has 2 divisors, whose sum is σ = 145512534. Its totient is φ = 145512532.

The previous prime is 145512457. The next prime is 145512539. The reversal of 145512533 is 335215541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87478609 + 58033924 = 9353^2 + 7618^2 .

It is an emirp because it is prime and its reverse (335215541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145512533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145512496 and 145512505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145512539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72756266 + 72756267.

It is an arithmetic number, because the mean of its divisors is an integer number (72756267).

Almost surely, 2^145512533 is an apocalyptic number.

It is an amenable number.

145512533 is a deficient number, since it is larger than the sum of its proper divisors (1).

145512533 is an equidigital number, since it uses as much as digits as its factorization.

145512533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 145512533 is about 12062.8575801922. The cubic root of 145512533 is about 525.9770563997.

The spelling of 145512533 in words is "one hundred forty-five million, five hundred twelve thousand, five hundred thirty-three".