1230436877 has 2 divisors, whose sum is σ = 1230436878. Its totient is φ = 1230436876.

The previous prime is 1230436811. The next prime is 1230436901. The reversal of 1230436877 is 7786340321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 690060361 + 540376516 = 26269^2 + 23246^2 .

It is an emirp because it is prime and its reverse (7786340321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230436877 - 2²⁰ = 1229388301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230436477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615218438 + 615218439.

It is an arithmetic number, because the mean of its divisors is an integer number (615218439).

Almost surely, 2^1230436877 is an apocalyptic number.

It is an amenable number.

1230436877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230436877 is an equidigital number, since it uses as much as digits as its factorization.

1230436877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 1230436877 is about 35077.5836824602. The cubic root of 1230436877 is about 1071.5681078044.

The spelling of 1230436877 in words is "one billion, two hundred thirty million, four hundred thirty-six thousand, eight hundred seventy-seven".