1225538 has 8 divisors (see below), whose sum is σ = 1935120. Its totient is φ = 580500.

The previous prime is 1225529. The next prime is 1225541. The reversal of 1225538 is 8355221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16088 + ... + 16163.

It is an arithmetic number, because the mean of its divisors is an integer number (241890).

2^1225538 is an apocalyptic number.

1225538 is a deficient number, since it is larger than the sum of its proper divisors (709582).

1225538 is a wasteful number, since it uses less digits than its factorization.

1225538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32272.

The product of its digits is 2400, while the sum is 26.

The square root of 1225538 is about 1107.0401980055. The cubic root of 1225538 is about 107.0144097983.

The spelling of 1225538 in words is "one million, two hundred twenty-five thousand, five hundred thirty-eight".