1230451477 has 2 divisors, whose sum is σ = 1230451478. Its totient is φ = 1230451476.

The previous prime is 1230451459. The next prime is 1230451553. The reversal of 1230451477 is 7741540321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100514276 + 129937201 = 33174^2 + 11399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230451477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230451777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615225738 + 615225739.

It is an arithmetic number, because the mean of its divisors is an integer number (615225739).

Almost surely, 2^1230451477 is an apocalyptic number.

It is an amenable number.

1230451477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230451477 is an equidigital number, since it uses as much as digits as its factorization.

1230451477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1230451477 is about 35077.7917919586. The cubic root of 1230451477 is about 1071.5723460910.

Adding to 1230451477 its reverse (7741540321), we get a palindrome (8971991798).

The spelling of 1230451477 in words is "one billion, two hundred thirty million, four hundred fifty-one thousand, four hundred seventy-seven".