1231270 has 8 divisors (see below), whose sum is σ = 2216304. Its totient is φ = 492504.

The previous prime is 1231267. The next prime is 1231277. The reversal of 1231270 is 721321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61554 + ... + 61573.

It is an arithmetic number, because the mean of its divisors is an integer number (277038).

2^1231270 is an apocalyptic number.

1231270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231270 is a deficient number, since it is larger than the sum of its proper divisors (985034).

1231270 is a wasteful number, since it uses less digits than its factorization.

1231270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123134.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1231270 is about 1109.6260631402. The cubic root of 1231270 is about 107.1809904475.

Adding to 1231270 its reverse (721321), we get a palindrome (1952591).

The spelling of 1231270 in words is "one million, two hundred thirty-one thousand, two hundred seventy".