1245251 has 4 divisors (see below), whose sum is σ = 1423152. Its totient is φ = 1067352.

The previous prime is 1245227. The next prime is 1245281. The reversal of 1245251 is 1525421.

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 1245251 - 2⁶ = 1245187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245281) 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, 88940 + ... + 88953.

It is an arithmetic number, because the mean of its divisors is an integer number (355788).

2^1245251 is an apocalyptic number.

1245251 is a deficient number, since it is larger than the sum of its proper divisors (177901).

1245251 is an equidigital number, since it uses as much as digits as its factorization.

1245251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177900.

The product of its digits is 400, while the sum is 20.

The square root of 1245251 is about 1115.9081503421. The cubic root of 1245251 is about 107.5851425707.

The spelling of 1245251 in words is "one million, two hundred forty-five thousand, two hundred fifty-one".