145246525 has 6 divisors (see below), whose sum is σ = 180105722. Its totient is φ = 116197200.

The previous prime is 145246513. The next prime is 145246531. The reversal of 145246525 is 525642541.

It can be written as a sum of positive squares in 3 ways, for example, as 44063044 + 101183481 = 6638^2 + 10059^2 .

It is a de Polignac number, because none of the positive numbers 2^k-145246525 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, 2904906 + ... + 2904955.

Almost surely, 2^145246525 is an apocalyptic number.

It is an amenable number.

145246525 is a deficient number, since it is larger than the sum of its proper divisors (34859197).

145246525 is an equidigital number, since it uses as much as digits as its factorization.

145246525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809871 (or 5809866 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 145246525 is about 12051.8266250390. The cubic root of 145246525 is about 525.6563521815.

The spelling of 145246525 in words is "one hundred forty-five million, two hundred forty-six thousand, five hundred twenty-five".