145225223785 has 8 divisors (see below), whose sum is σ = 174534719040. Its totient is φ = 116003878704.

The previous prime is 145225223761. The next prime is 145225223797. The reversal of 145225223785 is 587322522541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145225223785 - 2¹⁵ = 145225191017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22033917 + ... + 22040506.

It is an arithmetic number, because the mean of its divisors is an integer number (21816839880).

Almost surely, 2^145225223785 is an apocalyptic number.

It is an amenable number.

145225223785 is a deficient number, since it is larger than the sum of its proper divisors (29309495255).

145225223785 is an equidigital number, since it uses as much as digits as its factorization.

145225223785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44075087.

The product of its digits is 1344000, while the sum is 46.

The spelling of 145225223785 in words is "one hundred forty-five billion, two hundred twenty-five million, two hundred twenty-three thousand, seven hundred eighty-five".