1230969 has 4 divisors (see below), whose sum is σ = 1641296. Its totient is φ = 820644.

The previous prime is 1230967. The next prime is 1230997. The reversal of 1230969 is 9690321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1230969 - 2¹ = 1230967 is a prime.

It is a super-2 number, since 2×1230969² = 3030569357922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230967) 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, 205159 + ... + 205164.

It is an arithmetic number, because the mean of its divisors is an integer number (410324).

2^1230969 is an apocalyptic number.

It is an amenable number.

1230969 is a deficient number, since it is larger than the sum of its proper divisors (410327).

1230969 is an equidigital number, since it uses as much as digits as its factorization.

1230969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410326.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1230969 is about 1109.4904235729. The cubic root of 1230969 is about 107.1722558057.

The spelling of 1230969 in words is "one million, two hundred thirty thousand, nine hundred sixty-nine".