145316525 has 6 divisors (see below), whose sum is σ = 180192522. Its totient is φ = 116253200.

The previous prime is 145316497. The next prime is 145316537. The reversal of 145316525 is 525613541.

145316525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3087049 + 142229476 = 1757^2 + 11926^2 .

It is a de Polignac number, because none of the positive numbers 2^k-145316525 is a prime.

It is a super-2 number, since 2×145316525² = 42233784876151250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145316491 and 145316500.

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, 2906306 + ... + 2906355.

It is an arithmetic number, because the mean of its divisors is an integer number (30032087).

Almost surely, 2^145316525 is an apocalyptic number.

It is an amenable number.

145316525 is a deficient number, since it is larger than the sum of its proper divisors (34875997).

145316525 is an equidigital number, since it uses as much as digits as its factorization.

145316525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812671 (or 5812666 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 145316525 is about 12054.7303993080. The cubic root of 145316525 is about 525.7407834272.

The spelling of 145316525 in words is "one hundred forty-five million, three hundred sixteen thousand, five hundred twenty-five".