1225570 has 8 divisors (see below), whose sum is σ = 2206044. Its totient is φ = 490224.

The previous prime is 1225559. The next prime is 1225571. The reversal of 1225570 is 755221.

It can be written as a sum of positive squares in 2 ways, for example, as 1225449 + 121 = 1107^2 + 11^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1225571) 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, 61269 + ... + 61288.

2^1225570 is an apocalyptic number.

1225570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225570 is a deficient number, since it is larger than the sum of its proper divisors (980474).

1225570 is a wasteful number, since it uses less digits than its factorization.

1225570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122564.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 1225570 is about 1107.0546508642. The cubic root of 1225570 is about 107.0153412073.

The spelling of 1225570 in words is "one million, two hundred twenty-five thousand, five hundred seventy".