1209970 has 8 divisors (see below), whose sum is σ = 2177964. Its totient is φ = 483984.

The previous prime is 1209959. The next prime is 1209973. The reversal of 1209970 is 799021.

It can be written as a sum of positive squares in 2 ways, for example, as 1203409 + 6561 = 1097^2 + 81^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1209973) 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, 60489 + ... + 60508.

2^1209970 is an apocalyptic number.

1209970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1209970 is a deficient number, since it is larger than the sum of its proper divisors (967994).

1209970 is a wasteful number, since it uses less digits than its factorization.

1209970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121004.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1209970 is about 1099.9863635518. The cubic root of 1209970 is about 106.5593430064.

The spelling of 1209970 in words is "one million, two hundred nine thousand, nine hundred seventy".