1230346253 has 4 divisors (see below), whose sum is σ = 1302719580. Its totient is φ = 1157972928.

The previous prime is 1230346231. The next prime is 1230346261. The reversal of 1230346253 is 3526430321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 610435849 + 619910404 = 24707^2 + 24898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230346253 - 2¹⁸ = 1230084109 is a prime.

It is a super-2 number, since 2×1230346253² = 3027503804542280018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230346283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36186638 + ... + 36186671.

It is an arithmetic number, because the mean of its divisors is an integer number (325679895).

Almost surely, 2^1230346253 is an apocalyptic number.

It is an amenable number.

1230346253 is a deficient number, since it is larger than the sum of its proper divisors (72373327).

1230346253 is an equidigital number, since it uses as much as digits as its factorization.

1230346253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72373326.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 1230346253 is about 35076.2918935283. The cubic root of 1230346253 is about 1071.5417994868.

Adding to 1230346253 its reverse (3526430321), we get a palindrome (4756776574).

The spelling of 1230346253 in words is "one billion, two hundred thirty million, three hundred forty-six thousand, two hundred fifty-three".