145847525 has 24 divisors (see below), whose sum is σ = 192178920. Its totient is φ = 109589760.

The previous prime is 145847521. The next prime is 145847563. The reversal of 145847525 is 525748541.

145847525 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 12 ways, for example, as 9821956 + 136025569 = 3134^2 + 11663^2 .

It is not a de Polignac number, because 145847525 - 2² = 145847521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145847521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24107 + ... + 29543.

It is an arithmetic number, because the mean of its divisors is an integer number (8007455).

Almost surely, 2^145847525 is an apocalyptic number.

It is an amenable number.

145847525 is a deficient number, since it is larger than the sum of its proper divisors (46331395).

145847525 is a wasteful number, since it uses less digits than its factorization.

145847525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513 (or 5508 counting only the distinct ones).

The product of its digits is 224000, while the sum is 41.

The square root of 145847525 is about 12076.7348650204. The cubic root of 145847525 is about 526.3803734737.

The spelling of 145847525 in words is "one hundred forty-five million, eight hundred forty-seven thousand, five hundred twenty-five".