1061961599 has 2 divisors, whose sum is σ = 1061961600. Its totient is φ = 1061961598.

The previous prime is 1061961557. The next prime is 1061961601. The reversal of 1061961599 is 9951691601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061961599 - 2⁸ = 1061961343 is a prime.

It is a super-2 number, since 2×1061961599² = 2255524875501273602, which contains 22 as substring.

Together with 1061961601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061961539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530980799 + 530980800.

It is an arithmetic number, because the mean of its divisors is an integer number (530980800).

Almost surely, 2^1061961599 is an apocalyptic number.

1061961599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061961599 is an equidigital number, since it uses as much as digits as its factorization.

1061961599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 47.

The square root of 1061961599 is about 32587.7522851761. The cubic root of 1061961599 is about 1020.2413881472.

The spelling of 1061961599 in words is "one billion, sixty-one million, nine hundred sixty-one thousand, five hundred ninety-nine".