1013561429 has 2 divisors, whose sum is σ = 1013561430. Its totient is φ = 1013561428.

The previous prime is 1013561383. The next prime is 1013561431. The reversal of 1013561429 is 9241653101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 888636100 + 124925329 = 29810^2 + 11177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013561429 - 2¹⁶ = 1013495893 is a prime.

It is a Sophie Germain prime.

Together with 1013561431, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1013561395 and 1013561404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013561449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506780714 + 506780715.

It is an arithmetic number, because the mean of its divisors is an integer number (506780715).

Almost surely, 2^1013561429 is an apocalyptic number.

It is an amenable number.

1013561429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013561429 is an equidigital number, since it uses as much as digits as its factorization.

1013561429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1013561429 is about 31836.4795321342. The cubic root of 1013561429 is about 1004.5001942065.

The spelling of 1013561429 in words is "one billion, thirteen million, five hundred sixty-one thousand, four hundred twenty-nine".