1225078 has 8 divisors (see below), whose sum is σ = 1850400. Its totient is φ = 608280.

The previous prime is 1225073. The next prime is 1225079. The reversal of 1225078 is 8705221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1225078² = 3001632212168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (231300).

2^1225078 is an apocalyptic number.

1225078 is a deficient number, since it is larger than the sum of its proper divisors (625322).

1225078 is a wasteful number, since it uses less digits than its factorization.

1225078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1225078 is about 1106.8324173063. The cubic root of 1225078 is about 107.0010190021.

The spelling of 1225078 in words is "one million, two hundred twenty-five thousand, seventy-eight".