1400249 has 2 divisors, whose sum is σ = 1400250. Its totient is φ = 1400248.

The previous prime is 1400197. The next prime is 1400251. The reversal of 1400249 is 9420041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822649 + 577600 = 907^2 + 760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400249 is a prime.

Together with 1400251, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400249.

It is not a weakly prime, because it can be changed into another prime (1400279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700124 + 700125.

It is an arithmetic number, because the mean of its divisors is an integer number (700125).

2^1400249 is an apocalyptic number.

It is an amenable number.

1400249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400249 is an equidigital number, since it uses as much as digits as its factorization.

1400249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1400249 is about 1183.3211736464. The cubic root of 1400249 is about 111.8755260423.

The spelling of 1400249 in words is "one million, four hundred thousand, two hundred forty-nine".