1231470 has 32 divisors (see below), whose sum is σ = 3284640. Its totient is φ = 328320.

The previous prime is 1231469. The next prime is 1231481. The reversal of 1231470 is 741321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2011 + ... + 2550.

It is an arithmetic number, because the mean of its divisors is an integer number (102645).

2^1231470 is an apocalyptic number.

1231470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231470 is an abundant number, since it is smaller than the sum of its proper divisors (2053170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231470 is a wasteful number, since it uses less digits than its factorization.

1231470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577 (or 4571 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1231470 is about 1109.7161799307. The cubic root of 1231470 is about 107.1867934091.

Adding to 1231470 its reverse (741321), we get a palindrome (1972791).

The spelling of 1231470 in words is "one million, two hundred thirty-one thousand, four hundred seventy".