145203469 has 4 divisors (see below), whose sum is σ = 145540800. Its totient is φ = 144866140.

The previous prime is 145203419. The next prime is 145203481. The reversal of 145203469 is 964302541.

It is a happy number.

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 not a de Polignac number, because 145203469 - 2⁹ = 145202957 is a prime.

It is a super-2 number, since 2×145203469² = 42168094819267922, 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 (145203419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168019 + ... + 168880.

It is an arithmetic number, because the mean of its divisors is an integer number (36385200).

Almost surely, 2^145203469 is an apocalyptic number.

It is an amenable number.

145203469 is a deficient number, since it is larger than the sum of its proper divisors (337331).

145203469 is an equidigital number, since it uses as much as digits as its factorization.

145203469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337330.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 145203469 is about 12050.0402074018. The cubic root of 145203469 is about 525.6044062534.

The spelling of 145203469 in words is "one hundred forty-five million, two hundred three thousand, four hundred sixty-nine".