145530601 has 2 divisors, whose sum is σ = 145530602. Its totient is φ = 145530600.

The previous prime is 145530577. The next prime is 145530611. The reversal of 145530601 is 106035541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112869376 + 32661225 = 10624^2 + 5715^2 .

It is an emirp because it is prime and its reverse (106035541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145530601 - 2⁵ = 145530569 is a prime.

It is not a weakly prime, because it can be changed into another prime (145530611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72765300 + 72765301.

It is an arithmetic number, because the mean of its divisors is an integer number (72765301).

Almost surely, 2^145530601 is an apocalyptic number.

It is an amenable number.

145530601 is a deficient number, since it is larger than the sum of its proper divisors (1).

145530601 is an equidigital number, since it uses as much as digits as its factorization.

145530601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 145530601 is about 12063.6064673878. The cubic root of 145530601 is about 525.9988253382.

The spelling of 145530601 in words is "one hundred forty-five million, five hundred thirty thousand, six hundred one".