145445025 has 96 divisors (see below), whose sum is σ = 278839296. Its totient is φ = 66792000.

The previous prime is 145445023. The next prime is 145445033. The reversal of 145445025 is 520544541.

It is not a de Polignac number, because 145445025 - 2¹ = 145445023 is a prime.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 145444983 and 145445001.

It is not an unprimeable number, because it can be changed into a prime (145445023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3094552 + ... + 3094598.

It is an arithmetic number, because the mean of its divisors is an integer number (2904576).

Almost surely, 2^145445025 is an apocalyptic number.

145445025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145445025 is a deficient number, since it is larger than the sum of its proper divisors (133394271).

145445025 is a wasteful number, since it uses less digits than its factorization.

145445025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 145445025 is about 12060.0590794573. The cubic root of 145445025 is about 525.8957045261.

Adding to 145445025 its reverse (520544541), we get a palindrome (665989566).

The spelling of 145445025 in words is "one hundred forty-five million, four hundred forty-five thousand, twenty-five".