1026430961 has 2 divisors, whose sum is σ = 1026430962. Its totient is φ = 1026430960.

The previous prime is 1026430927. The next prime is 1026430967. The reversal of 1026430961 is 1690346201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732514225 + 293916736 = 27065^2 + 17144^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026430961 - 2¹⁸ = 1026168817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026430967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513215480 + 513215481.

It is an arithmetic number, because the mean of its divisors is an integer number (513215481).

Almost surely, 2^1026430961 is an apocalyptic number.

It is an amenable number.

1026430961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026430961 is an equidigital number, since it uses as much as digits as its factorization.

1026430961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1026430961 is about 32037.9612491182. The cubic root of 1026430961 is about 1008.7338186740.

The spelling of 1026430961 in words is "one billion, twenty-six million, four hundred thirty thousand, nine hundred sixty-one".