1228061 has 4 divisors (see below), whose sum is σ = 1233792. Its totient is φ = 1222332.

The previous prime is 1228021. The next prime is 1228091. The reversal of 1228061 is 1608221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1608221 = 71 ⋅22651.

It is a cyclic number.

It is not a de Polignac number, because 1228061 - 2¹⁴ = 1211677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228001) 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, 2531 + ... + 2976.

It is an arithmetic number, because the mean of its divisors is an integer number (308448).

2^1228061 is an apocalyptic number.

It is an amenable number.

1228061 is a deficient number, since it is larger than the sum of its proper divisors (5731).

1228061 is an equidigital number, since it uses as much as digits as its factorization.

1228061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1228061 is about 1108.1791371434. The cubic root of 1228061 is about 107.0877958779.

The spelling of 1228061 in words is "one million, two hundred twenty-eight thousand, sixty-one".