116649541 has 4 divisors (see below), whose sum is σ = 117960300. Its totient is φ = 115338784.

The previous prime is 116649539. The next prime is 116649553. The reversal of 116649541 is 145946611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145946611 = 37 ⋅3944503.

It can be written as a sum of positive squares in 2 ways, for example, as 71893441 + 44756100 = 8479^2 + 6690^2 .

It is a cyclic number.

It is not a de Polignac number, because 116649541 - 2¹ = 116649539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116649541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116649241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655246 + ... + 655423.

It is an arithmetic number, because the mean of its divisors is an integer number (29490075).

Almost surely, 2^116649541 is an apocalyptic number.

It is an amenable number.

116649541 is a deficient number, since it is larger than the sum of its proper divisors (1310759).

116649541 is an equidigital number, since it uses as much as digits as its factorization.

116649541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310758.

The product of its digits is 25920, while the sum is 37.

The square root of 116649541 is about 10800.4417039304. The cubic root of 116649541 is about 488.6084927733.

The spelling of 116649541 in words is "one hundred sixteen million, six hundred forty-nine thousand, five hundred forty-one".