145220354032525 has 6 divisors (see below), whose sum is σ = 180073239000362. Its totient is φ = 116176283226000.

The previous prime is 145220354032499. The next prime is 145220354032619. The reversal of 145220354032525 is 525230453022541.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 43586404 + 145220310446121 = 6602^2 + 12050739^2 .

It is a de Polignac number, because none of the positive numbers 2^k-145220354032525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2904407080626 + ... + 2904407080675.

Almost surely, 2^{145220354032525} is an apocalyptic number.

It is an amenable number.

145220354032525 is a deficient number, since it is larger than the sum of its proper divisors (34852884967837).

145220354032525 is an equidigital number, since it uses as much as digits as its factorization.

145220354032525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808814161311 (or 5808814161306 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 145220354032525 in words is "one hundred forty-five trillion, two hundred twenty billion, three hundred fifty-four million, thirty-two thousand, five hundred twenty-five".