1230961 has 4 divisors (see below), whose sum is σ = 1259632. Its totient is φ = 1202292.

The previous prime is 1230949. The next prime is 1230967. The reversal of 1230961 is 1690321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1690321 = 211 ⋅8011.

It is a cyclic number.

It is not a de Polignac number, because 1230961 - 2¹³ = 1222769 is a prime.

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, 14271 + ... + 14356.

It is an arithmetic number, because the mean of its divisors is an integer number (314908).

2^1230961 is an apocalyptic number.

It is an amenable number.

1230961 is a deficient number, since it is larger than the sum of its proper divisors (28671).

1230961 is an equidigital number, since it uses as much as digits as its factorization.

1230961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28670.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1230961 is about 1109.4868183084. The cubic root of 1230961 is about 107.1720236363.

The spelling of 1230961 in words is "one million, two hundred thirty thousand, nine hundred sixty-one".