145056825 has 30 divisors (see below), whose sum is σ = 268699134. Its totient is φ = 77362560.

The previous prime is 145056823. The next prime is 145056881. The reversal of 145056825 is 528650541.

It can be written as a sum of positive squares in 3 ways, for example, as 480249 + 144576576 = 693^2 + 12024^2 .

It is not a de Polignac number, because 145056825 - 2¹ = 145056823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145056825.

It is not an unprimeable number, because it can be changed into a prime (145056823) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 33792 + ... + 37841.

Almost surely, 2^145056825 is an apocalyptic number.

145056825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145056825 is a deficient number, since it is larger than the sum of its proper divisors (123642309).

145056825 is an equidigital number, since it uses as much as digits as its factorization.

145056825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71655 (or 71641 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 145056825 is about 12043.9538773610. The cubic root of 145056825 is about 525.4274070518.

The spelling of 145056825 in words is "one hundred forty-five million, fifty-six thousand, eight hundred twenty-five".