1231430 has 8 divisors (see below), whose sum is σ = 2216592. Its totient is φ = 492568.

The previous prime is 1231423. The next prime is 1231453. The reversal of 1231430 is 341321.

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, 61562 + ... + 61581.

It is an arithmetic number, because the mean of its divisors is an integer number (277074).

2^1231430 is an apocalyptic number.

1231430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231430 is a deficient number, since it is larger than the sum of its proper divisors (985162).

1231430 is a wasteful number, since it uses less digits than its factorization.

1231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123150.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1231430 is about 1109.6981571581. The cubic root of 1231430 is about 107.1856328670.

Adding to 1231430 its reverse (341321), we get a palindrome (1572751).

It can be divided in two parts, 1231 and 430, that added together give a palindrome (1661).

The spelling of 1231430 in words is "one million, two hundred thirty-one thousand, four hundred thirty".