145434253 has 4 divisors (see below), whose sum is σ = 145468288. Its totient is φ = 145400220.

The previous prime is 145434241. The next prime is 145434301. The reversal of 145434253 is 352434541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145434253 is a prime.

It is a super-2 number, since 2×145434253² = 42302243891336018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145434203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9501 + ... + 19522.

It is an arithmetic number, because the mean of its divisors is an integer number (36367072).

Almost surely, 2^145434253 is an apocalyptic number.

It is an amenable number.

145434253 is a deficient number, since it is larger than the sum of its proper divisors (34035).

145434253 is an equidigital number, since it uses as much as digits as its factorization.

145434253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034.

The product of its digits is 28800, while the sum is 31.

The square root of 145434253 is about 12059.6124730441. The cubic root of 145434253 is about 525.8827211820.

Adding to 145434253 its reverse (352434541), we get a palindrome (497868794).

The spelling of 145434253 in words is "one hundred forty-five million, four hundred thirty-four thousand, two hundred fifty-three".