1026434261 has 2 divisors, whose sum is σ = 1026434262. Its totient is φ = 1026434260.

The previous prime is 1026434249. The next prime is 1026434267. The reversal of 1026434261 is 1624346201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549011761 + 477422500 = 23431^2 + 21850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026434261 is a prime.

It is a super-2 number, since 2×1026434261² = 2107134584309232242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026434267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513217130 + 513217131.

It is an arithmetic number, because the mean of its divisors is an integer number (513217131).

Almost surely, 2^1026434261 is an apocalyptic number.

It is an amenable number.

1026434261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026434261 is an equidigital number, since it uses as much as digits as its factorization.

1026434261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1026434261 is about 32038.0127504813. The cubic root of 1026434261 is about 1008.7348997073.

The spelling of 1026434261 in words is "one billion, twenty-six million, four hundred thirty-four thousand, two hundred sixty-one".