135423045 has 12 divisors (see below), whose sum is σ = 234733356. Its totient is φ = 72225600.

The previous prime is 135423007. The next prime is 135423047. The reversal of 135423045 is 540324531.

135423045 is a `hidden beast` number, since 1 + 354 + 2 + 304 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53012961 + 82410084 = 7281^2 + 9078^2 .

It is not a de Polignac number, because 135423045 - 2⁸ = 135422789 is a prime.

It is a super-2 number, since 2×135423045² = 36678802234144050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1504656 + ... + 1504745.

It is an arithmetic number, because the mean of its divisors is an integer number (19561113).

Almost surely, 2^135423045 is an apocalyptic number.

135423045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135423045 is a deficient number, since it is larger than the sum of its proper divisors (99310311).

135423045 is a wasteful number, since it uses less digits than its factorization.

135423045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009412 (or 3009409 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 135423045 is about 11637.1407570760. The cubic root of 135423045 is about 513.5280747134.

Adding to 135423045 its reverse (540324531), we get a palindrome (675747576).

The spelling of 135423045 in words is "one hundred thirty-five million, four hundred twenty-three thousand, forty-five".