145174745 has 8 divisors (see below), whose sum is σ = 176415360. Its totient is φ = 114669360.

The previous prime is 145174739. The next prime is 145174789. The reversal of 145174745 is 547471541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-145174745 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145174699 and 145174708.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 183371 + ... + 184160.

It is an arithmetic number, because the mean of its divisors is an integer number (22051920).

Almost surely, 2^145174745 is an apocalyptic number.

It is an amenable number.

145174745 is a deficient number, since it is larger than the sum of its proper divisors (31240615).

145174745 is an equidigital number, since it uses as much as digits as its factorization.

145174745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367615.

The product of its digits is 78400, while the sum is 38.

The square root of 145174745 is about 12048.8482852097. The cubic root of 145174745 is about 525.5697457946.

The spelling of 145174745 in words is "one hundred forty-five million, one hundred seventy-four thousand, seven hundred forty-five".