145235845 has 8 divisors (see below), whose sum is σ = 184535064. Its totient is φ = 109353984.

The previous prime is 145235821. The next prime is 145235861. The reversal of 145235845 is 548532541.

It can be written as a sum of positive squares in 4 ways, for example, as 28206721 + 117029124 = 5311^2 + 10818^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145235845 - 2⁹ = 145235333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854244 + ... + 854413.

It is an arithmetic number, because the mean of its divisors is an integer number (23066883).

Almost surely, 2^145235845 is an apocalyptic number.

It is an amenable number.

145235845 is a deficient number, since it is larger than the sum of its proper divisors (39299219).

145235845 is a wasteful number, since it uses less digits than its factorization.

145235845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708679.

The product of its digits is 96000, while the sum is 37.

The square root of 145235845 is about 12051.3835305329. The cubic root of 145235845 is about 525.6434680008.

The spelling of 145235845 in words is "one hundred forty-five million, two hundred thirty-five thousand, eight hundred forty-five".