1231070 has 16 divisors (see below), whose sum is σ = 2228688. Its totient is φ = 489600.

The previous prime is 1231063. The next prime is 1231073. The reversal of 1231070 is 701321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231073) 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 7 ways as a sum of consecutive naturals, for example, 2870 + ... + 3270.

It is an arithmetic number, because the mean of its divisors is an integer number (139293).

2^1231070 is an apocalyptic number.

1231070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231070 is a deficient number, since it is larger than the sum of its proper divisors (997618).

1231070 is a wasteful number, since it uses less digits than its factorization.

1231070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1231070 is about 1109.5359390304. The cubic root of 1231070 is about 107.1751868575.

Adding to 1231070 its reverse (701321), we get a palindrome (1932391).

The spelling of 1231070 in words is "one million, two hundred thirty-one thousand, seventy".