133711245 has 24 divisors (see below), whose sum is σ = 232461216. Its totient is φ = 71098848.

The previous prime is 133711241. The next prime is 133711267. The reversal of 133711245 is 542117331.

It is not a de Polignac number, because 133711245 - 2² = 133711241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133711241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11334 + ... + 19896.

It is an arithmetic number, because the mean of its divisors is an integer number (9685884).

Almost surely, 2^133711245 is an apocalyptic number.

133711245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133711245 is a deficient number, since it is larger than the sum of its proper divisors (98749971).

133711245 is a wasteful number, since it uses less digits than its factorization.

133711245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921 (or 8918 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 133711245 is about 11563.3578600682. The cubic root of 133711245 is about 511.3551617612.

Adding to 133711245 its reverse (542117331), we get a palindrome (675828576).

It can be divided in two parts, 133711 and 245, that added together give a square (133956 = 366²).

The spelling of 133711245 in words is "one hundred thirty-three million, seven hundred eleven thousand, two hundred forty-five".