1061405269 has 2 divisors, whose sum is σ = 1061405270. Its totient is φ = 1061405268.

The previous prime is 1061405239. The next prime is 1061405287. The reversal of 1061405269 is 9625041601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 827712900 + 233692369 = 28770^2 + 15287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061405269 - 2⁷ = 1061405141 is a prime.

It is a super-2 number, since 2×1061405269² = 2253162290121924722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061405239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530702634 + 530702635.

It is an arithmetic number, because the mean of its divisors is an integer number (530702635).

Almost surely, 2^1061405269 is an apocalyptic number.

It is an amenable number.

1061405269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061405269 is an equidigital number, since it uses as much as digits as its factorization.

1061405269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1061405269 is about 32579.2152913479. The cubic root of 1061405269 is about 1020.0631990189.

The spelling of 1061405269 in words is "one billion, sixty-one million, four hundred five thousand, two hundred sixty-nine".