1230426649 has 2 divisors, whose sum is σ = 1230426650. Its totient is φ = 1230426648.

The previous prime is 1230426619. The next prime is 1230426679. The reversal of 1230426649 is 9466240321.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1230426619) and next prime (1230426679).

It can be written as a sum of positive squares in only one way, i.e., 1194186249 + 36240400 = 34557^2 + 6020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230426649 - 2²¹ = 1228329497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230426619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615213324 + 615213325.

It is an arithmetic number, because the mean of its divisors is an integer number (615213325).

Almost surely, 2^1230426649 is an apocalyptic number.

It is an amenable number.

1230426649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230426649 is an equidigital number, since it uses as much as digits as its factorization.

1230426649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1230426649 is about 35077.4378910433. The cubic root of 1230426649 is about 1071.5651386614.

The spelling of 1230426649 in words is "one billion, two hundred thirty million, four hundred twenty-six thousand, six hundred forty-nine".