1245401133 has 8 divisors (see below), whose sum is σ = 1660760928. Its totient is φ = 830154384.

The previous prime is 1245401083. The next prime is 1245401197. The reversal of 1245401133 is 3311045421.

It is a happy number.

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

It is not a de Polignac number, because 1245401133 - 2¹⁰ = 1245400109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245401933) 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, 2110 + ... + 49952.

It is an arithmetic number, because the mean of its divisors is an integer number (207595116).

Almost surely, 2^1245401133 is an apocalyptic number.

It is an amenable number.

1245401133 is a deficient number, since it is larger than the sum of its proper divisors (415359795).

1245401133 is an equidigital number, since it uses as much as digits as its factorization.

1245401133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56523.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1245401133 is about 35290.2413281632. The cubic root of 1245401133 is about 1075.8946604472.

Adding to 1245401133 its reverse (3311045421), we get a palindrome (4556446554).

The spelling of 1245401133 in words is "one billion, two hundred forty-five million, four hundred one thousand, one hundred thirty-three".