961836541 has 4 divisors (see below), whose sum is σ = 962034172. Its totient is φ = 961638912.

The previous prime is 961836521. The next prime is 961836553. The reversal of 961836541 is 145638169.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 439531225 + 522305316 = 20965^2 + 22854^2 .

It is a cyclic number.

It is not a de Polignac number, because 961836541 - 2⁵ = 961836509 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961836511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91326 + ... + 101311.

It is an arithmetic number, because the mean of its divisors is an integer number (240508543).

Almost surely, 2^961836541 is an apocalyptic number.

It is an amenable number.

961836541 is a deficient number, since it is larger than the sum of its proper divisors (197631).

961836541 is a wasteful number, since it uses less digits than its factorization.

961836541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197630.

The product of its digits is 155520, while the sum is 43.

The square root of 961836541 is about 31013.4896617585. The cubic root of 961836541 is about 987.1134983955.

The spelling of 961836541 in words is "nine hundred sixty-one million, eight hundred thirty-six thousand, five hundred forty-one".