145677825 has 48 divisors (see below), whose sum is σ = 270250560. Its totient is φ = 76930560.

The previous prime is 145677823. The next prime is 145677841. The reversal of 145677825 is 528776541.

145677825 is a `hidden beast` number, since 1 + 4 + 567 + 7 + 82 + 5 = 666.

It is not a de Polignac number, because 145677825 - 2¹ = 145677823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (145677823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71217 + ... + 73233.

It is an arithmetic number, because the mean of its divisors is an integer number (5630220).

Almost surely, 2^145677825 is an apocalyptic number.

145677825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145677825 is a deficient number, since it is larger than the sum of its proper divisors (124572735).

145677825 is a wasteful number, since it uses less digits than its factorization.

145677825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2132 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 145677825 is about 12069.7069144201. The cubic root of 145677825 is about 526.1761386813.

The spelling of 145677825 in words is "one hundred forty-five million, six hundred seventy-seven thousand, eight hundred twenty-five".