1251433 has 2 divisors, whose sum is σ = 1251434. Its totient is φ = 1251432.

The previous prime is 1251431. The next prime is 1251461. The reversal of 1251433 is 3341521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946729 + 304704 = 973^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1251433 - 2¹ = 1251431 is a prime.

Together with 1251431, it forms a pair of twin primes.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1251433.

It is not a weakly prime, because it can be changed into another prime (1251431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625716 + 625717.

It is an arithmetic number, because the mean of its divisors is an integer number (625717).

2^1251433 is an apocalyptic number.

It is an amenable number.

1251433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251433 is an equidigital number, since it uses as much as digits as its factorization.

1251433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 19.

The square root of 1251433 is about 1118.6746622678. The cubic root of 1251433 is about 107.7628828469.

Adding to 1251433 its reverse (3341521), we get a palindrome (4592954).

The spelling of 1251433 in words is "one million, two hundred fifty-one thousand, four hundred thirty-three".