145747529 has 2 divisors, whose sum is σ = 145747530. Its totient is φ = 145747528.

The previous prime is 145747507. The next prime is 145747531. The reversal of 145747529 is 925747541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144841225 + 906304 = 12035^2 + 952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145747529 is a prime.

Together with 145747531, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145747529.

It is not a weakly prime, because it can be changed into another prime (145747549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72873764 + 72873765.

It is an arithmetic number, because the mean of its divisors is an integer number (72873765).

Almost surely, 2^145747529 is an apocalyptic number.

It is an amenable number.

145747529 is a deficient number, since it is larger than the sum of its proper divisors (1).

145747529 is an equidigital number, since it uses as much as digits as its factorization.

145747529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 44.

The square root of 145747529 is about 12072.5941288523. The cubic root of 145747529 is about 526.2600469756.

The spelling of 145747529 in words is "one hundred forty-five million, seven hundred forty-seven thousand, five hundred twenty-nine".