1251363 has 8 divisors (see below), whose sum is σ = 1674000. Its totient is φ = 831488.

The previous prime is 1251329. The next prime is 1251409. The reversal of 1251363 is 3631521.

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 1251363 - 2¹⁶ = 1185827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1251323) 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, 883 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (209250).

2^1251363 is an apocalyptic number.

1251363 is a deficient number, since it is larger than the sum of its proper divisors (422637).

1251363 is an equidigital number, since it uses as much as digits as its factorization.

1251363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381.

The product of its digits is 540, while the sum is 21.

The square root of 1251363 is about 1118.6433748072. The cubic root of 1251363 is about 107.7608735391.

Adding to 1251363 its reverse (3631521), we get a palindrome (4882884).

The spelling of 1251363 in words is "one million, two hundred fifty-one thousand, three hundred sixty-three".