145654529 has 2 divisors, whose sum is σ = 145654530. Its totient is φ = 145654528.

The previous prime is 145654489. The next prime is 145654541. The reversal of 145654529 is 925456541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 71436304 = 8615^2 + 8452^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145654529 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (145654549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72827264 + 72827265.

It is an arithmetic number, because the mean of its divisors is an integer number (72827265).

Almost surely, 2^145654529 is an apocalyptic number.

It is an amenable number.

145654529 is a deficient number, since it is larger than the sum of its proper divisors (1).

145654529 is an equidigital number, since it uses as much as digits as its factorization.

145654529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 41.

The square root of 145654529 is about 12068.7418151189. The cubic root of 145654529 is about 526.1480894505.

The spelling of 145654529 in words is "one hundred forty-five million, six hundred fifty-four thousand, five hundred twenty-nine".