1251367 has 4 divisors (see below), whose sum is σ = 1347640. Its totient is φ = 1155096.

The previous prime is 1251329. The next prime is 1251409. The reversal of 1251367 is 7631521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1251367 - 2¹¹ = 1249319 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 (1251307) 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, 48117 + ... + 48142.

It is an arithmetic number, because the mean of its divisors is an integer number (336910).

2^1251367 is an apocalyptic number.

1251367 is a deficient number, since it is larger than the sum of its proper divisors (96273).

1251367 is an equidigital number, since it uses as much as digits as its factorization.

1251367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96272.

The product of its digits is 1260, while the sum is 25.

The square root of 1251367 is about 1118.6451626856. The cubic root of 1251367 is about 107.7609883587.

Adding to 1251367 its reverse (7631521), we get a palindrome (8882888).

The spelling of 1251367 in words is "one million, two hundred fifty-one thousand, three hundred sixty-seven".