961565119 has 2 divisors, whose sum is σ = 961565120. Its totient is φ = 961565118.

The previous prime is 961565113. The next prime is 961565159. The reversal of 961565119 is 911565169.

It is a weak prime.

It is an emirp because it is prime and its reverse (911565169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 961565119 - 2⁹ = 961564607 is a prime.

It is a super-2 number, since 2×961565119² = 1849214956154968322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961565113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480782559 + 480782560.

It is an arithmetic number, because the mean of its divisors is an integer number (480782560).

Almost surely, 2^961565119 is an apocalyptic number.

961565119 is a deficient number, since it is larger than the sum of its proper divisors (1).

961565119 is an equidigital number, since it uses as much as digits as its factorization.

961565119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 43.

The square root of 961565119 is about 31009.1134829746. The cubic root of 961565119 is about 987.0206380135.

The spelling of 961565119 in words is "nine hundred sixty-one million, five hundred sixty-five thousand, one hundred nineteen".