961545311 has 4 divisors (see below), whose sum is σ = 961620912. Its totient is φ = 961469712.

The previous prime is 961545301. The next prime is 961545359. The reversal of 961545311 is 113545169.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 113545169 = 269 ⋅422101.

It is a cyclic number.

It is not a de Polignac number, because 961545311 - 2¹⁴ = 961528927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961545301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13526 + ... + 45891.

It is an arithmetic number, because the mean of its divisors is an integer number (240405228).

Almost surely, 2^961545311 is an apocalyptic number.

961545311 is a deficient number, since it is larger than the sum of its proper divisors (75601).

961545311 is a wasteful number, since it uses less digits than its factorization.

961545311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75600.

The product of its digits is 16200, while the sum is 35.

The square root of 961545311 is about 31008.7940913541. The cubic root of 961545311 is about 987.0138605078.

The spelling of 961545311 in words is "nine hundred sixty-one million, five hundred forty-five thousand, three hundred eleven".