1240422133 has 8 divisors (see below), whose sum is σ = 1286439480. Its totient is φ = 1194621120.

The previous prime is 1240422109. The next prime is 1240422137. The reversal of 1240422133 is 3312240421.

It can be written as a sum of positive squares in 4 ways, for example, as 568679409 + 671742724 = 23847^2 + 25918^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240422133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240422137) 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, 42358 + ... + 65383.

It is an arithmetic number, because the mean of its divisors is an integer number (160804935).

Almost surely, 2^1240422133 is an apocalyptic number.

It is an amenable number.

1240422133 is a deficient number, since it is larger than the sum of its proper divisors (46017347).

1240422133 is a wasteful number, since it uses less digits than its factorization.

1240422133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108167.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240422133 is about 35219.6270991048. The cubic root of 1240422133 is about 1074.4589692893.

Adding to 1240422133 its reverse (3312240421), we get a palindrome (4552662554).

The spelling of 1240422133 in words is "one billion, two hundred forty million, four hundred twenty-two thousand, one hundred thirty-three".