1230143 has 4 divisors (see below), whose sum is σ = 1245048. Its totient is φ = 1215240.

The previous prime is 1230127. The next prime is 1230167. The reversal of 1230143 is 3410321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410321 = 263 ⋅12967.

It is a cyclic number.

It is not a de Polignac number, because 1230143 - 2⁴ = 1230127 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230343) 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, 7328 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (311262).

2^1230143 is an apocalyptic number.

1230143 is a deficient number, since it is larger than the sum of its proper divisors (14905).

1230143 is an equidigital number, since it uses as much as digits as its factorization.

1230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904.

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

The square root of 1230143 is about 1109.1181181461. The cubic root of 1230143 is about 107.1482790061.

Adding to 1230143 its reverse (3410321), we get a palindrome (4640464).

The spelling of 1230143 in words is "one million, two hundred thirty thousand, one hundred forty-three".