1225270 has 8 divisors (see below), whose sum is σ = 2205504. Its totient is φ = 490104.

The previous prime is 1225261. The next prime is 1225283. The reversal of 1225270 is 725221.

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

It is a congruent number.

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, 61254 + ... + 61273.

It is an arithmetic number, because the mean of its divisors is an integer number (275688).

2^1225270 is an apocalyptic number.

1225270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225270 is a deficient number, since it is larger than the sum of its proper divisors (980234).

1225270 is a wasteful number, since it uses less digits than its factorization.

1225270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122534.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1225270 is about 1106.9191479056. The cubic root of 1225270 is about 107.0066086115.

The spelling of 1225270 in words is "one million, two hundred twenty-five thousand, two hundred seventy".