145489535 has 4 divisors (see below), whose sum is σ = 174587448. Its totient is φ = 116391624.

The previous prime is 145489523. The next prime is 145489537. The reversal of 145489535 is 535984541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535984541 = 769 ⋅696989.

It is a cyclic number.

It is not a de Polignac number, because 145489535 - 2²⁴ = 128712319 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 (145489537) 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, 14548949 + ... + 14548958.

It is an arithmetic number, because the mean of its divisors is an integer number (43646862).

Almost surely, 2^145489535 is an apocalyptic number.

145489535 is a deficient number, since it is larger than the sum of its proper divisors (29097913).

145489535 is an equidigital number, since it uses as much as digits as its factorization.

145489535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29097912.

The product of its digits is 432000, while the sum is 44.

The square root of 145489535 is about 12061.9042858083. The cubic root of 145489535 is about 525.9493450234.

The spelling of 145489535 in words is "one hundred forty-five million, four hundred eighty-nine thousand, five hundred thirty-five".