1241400133 has 4 divisors (see below), whose sum is σ = 1242931648. Its totient is φ = 1239868620.

The previous prime is 1241400119. The next prime is 1241400217. The reversal of 1241400133 is 3310041421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1241400133 - 2²⁵ = 1207845701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241400133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241400103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764541 + ... + 766162.

It is an arithmetic number, because the mean of its divisors is an integer number (310732912).

Almost surely, 2^1241400133 is an apocalyptic number.

It is an amenable number.

1241400133 is a deficient number, since it is larger than the sum of its proper divisors (1531515).

1241400133 is an equidigital number, since it uses as much as digits as its factorization.

1241400133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531514.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1241400133 is about 35233.5086671765. The cubic root of 1241400133 is about 1074.7412777054.

Adding to 1241400133 its reverse (3310041421), we get a palindrome (4551441554).

The spelling of 1241400133 in words is "one billion, two hundred forty-one million, four hundred thousand, one hundred thirty-three".