1122135645 has 8 divisors (see below), whose sum is σ = 1795417056. Its totient is φ = 598472336.

The previous prime is 1122135563. The next prime is 1122135647. The reversal of 1122135645 is 5465312211.

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 1122135645 - 2¹⁴ = 1122119261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122135647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37404507 + ... + 37404536.

It is an arithmetic number, because the mean of its divisors is an integer number (224427132).

Almost surely, 2^1122135645 is an apocalyptic number.

1122135645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122135645 is a deficient number, since it is larger than the sum of its proper divisors (673281411).

1122135645 is an equidigital number, since it uses as much as digits as its factorization.

1122135645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74809051.

The product of its digits is 7200, while the sum is 30.

The square root of 1122135645 is about 33498.2931654734. The cubic root of 1122135645 is about 1039.1584800758.

Adding to 1122135645 its reverse (5465312211), we get a palindrome (6587447856).

The spelling of 1122135645 in words is "one billion, one hundred twenty-two million, one hundred thirty-five thousand, six hundred forty-five".