1225970 has 8 divisors (see below), whose sum is σ = 2206764. Its totient is φ = 490384.

The previous prime is 1225963. The next prime is 1225981. The reversal of 1225970 is 795221.

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 219961 = 1003^2 + 469^2 .

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

It is a Curzon number.

It is an unprimeable number.

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, 61289 + ... + 61308.

2^1225970 is an apocalyptic number.

1225970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225970 is a deficient number, since it is larger than the sum of its proper divisors (980794).

1225970 is a wasteful number, since it uses less digits than its factorization.

1225970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122604.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1225970 is about 1107.2352956802. The cubic root of 1225970 is about 107.0269824519.

The spelling of 1225970 in words is "one million, two hundred twenty-five thousand, nine hundred seventy".