145222529 has 8 divisors (see below), whose sum is σ = 159512640. Its totient is φ = 131597136.

The previous prime is 145222501. The next prime is 145222537. The reversal of 145222529 is 925222541.

145222529 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 a de Polignac number, because none of the positive numbers 2^k-145222529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145222495 and 145222504.

It is not an unprimeable number, because it can be changed into a prime (145222549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165722 + ... + 166595.

It is an arithmetic number, because the mean of its divisors is an integer number (19939080).

Almost surely, 2^145222529 is an apocalyptic number.

145222529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145222529 is a deficient number, since it is larger than the sum of its proper divisors (14290111).

145222529 is a wasteful number, since it uses less digits than its factorization.

145222529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332359.

The product of its digits is 14400, while the sum is 32.

The square root of 145222529 is about 12050.8310501807. The cubic root of 145222529 is about 525.6274029071.

The spelling of 145222529 in words is "one hundred forty-five million, two hundred twenty-two thousand, five hundred twenty-nine".