1245401 has 2 divisors, whose sum is σ = 1245402. Its totient is φ = 1245400.

The previous prime is 1245397. The next prime is 1245421. The reversal of 1245401 is 1045421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 121801 = 1060^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245401 - 2² = 1245397 is a prime.

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 1245401.

It is not a weakly prime, because it can be changed into another prime (1245421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622700 + 622701.

It is an arithmetic number, because the mean of its divisors is an integer number (622701).

2^1245401 is an apocalyptic number.

It is an amenable number.

1245401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245401 is an equidigital number, since it uses as much as digits as its factorization.

1245401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1245401 is about 1115.9753581509. The cubic root of 1245401 is about 107.5894622148.

The spelling of 1245401 in words is "one million, two hundred forty-five thousand, four hundred one".