145176705 has 28 divisors (see below), whose sum is σ = 261205140. Its totient is φ = 77425632.

The previous prime is 145176659. The next prime is 145176727. The reversal of 145176705 is 507671541.

It can be written as a sum of positive squares in 2 ways, for example, as 100340289 + 44836416 = 10017^2 + 6696^2 .

It is not a de Polignac number, because 145176705 - 2²¹ = 143079553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145176705.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 16270 + ... + 23559.

It is an arithmetic number, because the mean of its divisors is an integer number (9328755).

Almost surely, 2^145176705 is an apocalyptic number.

145176705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145176705 is a deficient number, since it is larger than the sum of its proper divisors (116028435).

145176705 is an frugal number, since it uses more digits than its factorization.

145176705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39852 (or 39837 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 145176705 is about 12048.9296205099. The cubic root of 145176705 is about 525.5721110179.

The spelling of 145176705 in words is "one hundred forty-five million, one hundred seventy-six thousand, seven hundred five".