1230555253 has 2 divisors, whose sum is σ = 1230555254. Its totient is φ = 1230555252.

The previous prime is 1230555239. The next prime is 1230555259. The reversal of 1230555253 is 3525550321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850422244 + 380133009 = 29162^2 + 19497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230555253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230555259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615277626 + 615277627.

It is an arithmetic number, because the mean of its divisors is an integer number (615277627).

Almost surely, 2^1230555253 is an apocalyptic number.

It is an amenable number.

1230555253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230555253 is an equidigital number, since it uses as much as digits as its factorization.

1230555253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 1230555253 is about 35079.2709872939. The cubic root of 1230555253 is about 1071.6024706341.

The spelling of 1230555253 in words is "one billion, two hundred thirty million, five hundred fifty-five thousand, two hundred fifty-three".