445311123 has 4 divisors (see below), whose sum is σ = 593748168. Its totient is φ = 296874080.

The previous prime is 445311101. The next prime is 445311133. The reversal of 445311123 is 321113544.

It is a happy number.

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 445311123 - 2¹⁸ = 445048979 is a prime.

It is a super-2 number, since 2×445311123² = 396603992535042258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445311093 and 445311102.

It is not an unprimeable number, because it can be changed into a prime (445311133) 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, 74218518 + ... + 74218523.

It is an arithmetic number, because the mean of its divisors is an integer number (148437042).

Almost surely, 2^445311123 is an apocalyptic number.

445311123 is a deficient number, since it is larger than the sum of its proper divisors (148437045).

445311123 is a wasteful number, since it uses less digits than its factorization.

445311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148437044.

The product of its digits is 1440, while the sum is 24.

The square root of 445311123 is about 21102.3961435663. The cubic root of 445311123 is about 763.6385559242.

Adding to 445311123 its reverse (321113544), we get a palindrome (766424667).

It can be divided in two parts, 44531 and 1123, that added together give a palindrome (45654).

The spelling of 445311123 in words is "four hundred forty-five million, three hundred eleven thousand, one hundred twenty-three".