145665235 has 4 divisors (see below), whose sum is σ = 174798288. Its totient is φ = 116532184.

The previous prime is 145665227. The next prime is 145665257. The reversal of 145665235 is 532566541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145665235 - 2³ = 145665227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145665194 and 145665203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14566519 + ... + 14566528.

It is an arithmetic number, because the mean of its divisors is an integer number (43699572).

Almost surely, 2^145665235 is an apocalyptic number.

145665235 is a deficient number, since it is larger than the sum of its proper divisors (29133053).

145665235 is an equidigital number, since it uses as much as digits as its factorization.

145665235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29133052.

The product of its digits is 108000, while the sum is 37.

The square root of 145665235 is about 12069.1853494757. The cubic root of 145665235 is about 526.1609802350.

The spelling of 145665235 in words is "one hundred forty-five million, six hundred sixty-five thousand, two hundred thirty-five".