1210420133 has 8 divisors (see below), whose sum is σ = 1324899576. Its totient is φ = 1098993600.

The previous prime is 1210420117. The next prime is 1210420147. The reversal of 1210420133 is 3310240121.

It can be written as a sum of positive squares in 4 ways, for example, as 80317444 + 1130102689 = 8962^2 + 33617^2 .

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 1210420133 - 2⁴ = 1210420117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210420193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762398 + ... + 763983.

It is an arithmetic number, because the mean of its divisors is an integer number (165612447).

Almost surely, 2^1210420133 is an apocalyptic number.

1210420133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1210420133 is a deficient number, since it is larger than the sum of its proper divisors (114479443).

1210420133 is a wasteful number, since it uses less digits than its factorization.

1210420133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526455.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1210420133 is about 34791.0927250065. The cubic root of 1210420133 is about 1065.7255543586.

Adding to 1210420133 its reverse (3310240121), we get a palindrome (4520660254).

The spelling of 1210420133 in words is "one billion, two hundred ten million, four hundred twenty thousand, one hundred thirty-three".