145335769 has 4 divisors (see below), whose sum is σ = 152985040. Its totient is φ = 137686500.

The previous prime is 145335767. The next prime is 145335787. The reversal of 145335769 is 967533541.

145335769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145335769 - 2¹ = 145335767 is a prime.

It is a super-2 number, since 2×145335769² = 42244971501642722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145335763) 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, 3824607 + ... + 3824644.

It is an arithmetic number, because the mean of its divisors is an integer number (38246260).

Almost surely, 2^145335769 is an apocalyptic number.

145335769 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145335769 is a deficient number, since it is larger than the sum of its proper divisors (7649271).

145335769 is an equidigital number, since it uses as much as digits as its factorization.

145335769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649270.

The product of its digits is 340200, while the sum is 43.

The square root of 145335769 is about 12055.5285657660. The cubic root of 145335769 is about 525.7639900310.

It can be divided in two parts, 14533 and 5769, that added together give a palindrome (20302).

The spelling of 145335769 in words is "one hundred forty-five million, three hundred thirty-five thousand, seven hundred sixty-nine".