1228251 has 16 divisors (see below), whose sum is σ = 1732608. Its totient is φ = 772800.

The previous prime is 1228247. The next prime is 1228273. The reversal of 1228251 is 1528221.

It is a happy number.

It is not a de Polignac number, because 1228251 - 2² = 1228247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4231 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (108288).

2^1228251 is an apocalyptic number.

1228251 is a deficient number, since it is larger than the sum of its proper divisors (504357).

1228251 is a wasteful number, since it uses less digits than its factorization.

1228251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

The product of its digits is 320, while the sum is 21.

The square root of 1228251 is about 1108.2648600402. The cubic root of 1228251 is about 107.0933183050.

The spelling of 1228251 in words is "one million, two hundred twenty-eight thousand, two hundred fifty-one".