145235253 has 16 divisors (see below), whose sum is σ = 196292096. Its totient is φ = 95508720.

The previous prime is 145235239. The next prime is 145235261. The reversal of 145235253 is 352532541.

It is not a de Polignac number, because 145235253 - 2¹² = 145231157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145235253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145235263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94098 + ... + 95628.

It is an arithmetic number, because the mean of its divisors is an integer number (12268256).

Almost surely, 2^145235253 is an apocalyptic number.

It is an amenable number.

145235253 is a deficient number, since it is larger than the sum of its proper divisors (51056843).

145235253 is a wasteful number, since it uses less digits than its factorization.

145235253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its digits is 18000, while the sum is 30.

The square root of 145235253 is about 12051.3589690126. The cubic root of 145235253 is about 525.6427538030.

Adding to 145235253 its reverse (352532541), we get a palindrome (497767794).

The spelling of 145235253 in words is "one hundred forty-five million, two hundred thirty-five thousand, two hundred fifty-three".