1230356 has 6 divisors (see below), whose sum is σ = 2153130. Its totient is φ = 615176.

The previous prime is 1230349. The next prime is 1230367. The reversal of 1230356 is 6530321.

It can be written as a sum of positive squares in only one way, i.e., 781456 + 448900 = 884^2 + 670^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153791 + ... + 153798.

It is an arithmetic number, because the mean of its divisors is an integer number (358855).

2^1230356 is an apocalyptic number.

It is an amenable number.

1230356 is a deficient number, since it is larger than the sum of its proper divisors (922774).

1230356 is a wasteful number, since it uses less digits than its factorization.

1230356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307593 (or 307591 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1230356 is about 1109.2141362244. The cubic root of 1230356 is about 107.1544629121.

Adding to 1230356 its reverse (6530321), we get a palindrome (7760677).

The spelling of 1230356 in words is "one million, two hundred thirty thousand, three hundred fifty-six".