145625221223 has 8 divisors (see below), whose sum is σ = 145922827920. Its totient is φ = 145327772160.

The previous prime is 145625221201. The next prime is 145625221321. The reversal of 145625221223 is 322122526541.

It is a happy number.

145625221223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145625221223 - 2²² = 145621026919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145625229223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907633 + ... + 1982501.

It is an arithmetic number, because the mean of its divisors is an integer number (18240353490).

Almost surely, 2^145625221223 is an apocalyptic number.

145625221223 is a deficient number, since it is larger than the sum of its proper divisors (297606697).

145625221223 is an equidigital number, since it uses as much as digits as its factorization.

145625221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78817.

The product of its digits is 57600, while the sum is 35.

Adding to 145625221223 its reverse (322122526541), we get a palindrome (467747747764).

The spelling of 145625221223 in words is "one hundred forty-five billion, six hundred twenty-five million, two hundred twenty-one thousand, two hundred twenty-three".