145315403525 has 6 divisors (see below), whose sum is σ = 180191100402. Its totient is φ = 116252322800.

The previous prime is 145315403447. The next prime is 145315403567. The reversal of 145315403525 is 525304513541.

It can be written as a sum of positive squares in 3 ways, for example, as 25733613889 + 119581789636 = 160417^2 + 345806^2 .

It is not a de Polignac number, because 145315403525 - 2¹⁴ = 145315387141 is a prime.

It is a super-2 number, since 2×145315403525² (a number of 23 digits) contains 22 as substring.

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, 2906308046 + ... + 2906308095.

It is an arithmetic number, because the mean of its divisors is an integer number (30031850067).

Almost surely, 2^145315403525 is an apocalyptic number.

It is an amenable number.

145315403525 is a deficient number, since it is larger than the sum of its proper divisors (34875696877).

145315403525 is an equidigital number, since it uses as much as digits as its factorization.

145315403525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812616151 (or 5812616146 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 145315403525 in words is "one hundred forty-five billion, three hundred fifteen million, four hundred three thousand, five hundred twenty-five".