145122253 has 8 divisors (see below), whose sum is σ = 150010880. Its totient is φ = 140246640.

The previous prime is 145122223. The next prime is 145122269. The reversal of 145122253 is 352221541.

145122253 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-145122253 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 (145122223) 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, 22876 + ... + 28522.

It is an arithmetic number, because the mean of its divisors is an integer number (18751360).

Almost surely, 2^145122253 is an apocalyptic number.

It is an amenable number.

145122253 is a deficient number, since it is larger than the sum of its proper divisors (4888627).

145122253 is an equidigital number, since it uses as much as digits as its factorization.

145122253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507.

The product of its digits is 2400, while the sum is 25.

The square root of 145122253 is about 12046.6697887840. The cubic root of 145122253 is about 525.5063933318.

Adding to 145122253 its reverse (352221541), we get a palindrome (497343794).

The spelling of 145122253 in words is "one hundred forty-five million, one hundred twenty-two thousand, two hundred fifty-three".