116520545 has 4 divisors (see below), whose sum is σ = 139824660. Its totient is φ = 93216432.

The previous prime is 116520541. The next prime is 116520563. The reversal of 116520545 is 545025611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545025611 = 13 ⋅41925047.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 104693824 = 3439^2 + 10232^2 .

It is a cyclic number.

It is not a de Polignac number, because 116520545 - 2² = 116520541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116520541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11652050 + ... + 11652059.

It is an arithmetic number, because the mean of its divisors is an integer number (34956165).

Almost surely, 2^116520545 is an apocalyptic number.

It is an amenable number.

116520545 is a deficient number, since it is larger than the sum of its proper divisors (23304115).

116520545 is an equidigital number, since it uses as much as digits as its factorization.

116520545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304114.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 116520545 is about 10794.4682592521. The cubic root of 116520545 is about 488.4283183577.

The spelling of 116520545 in words is "one hundred sixteen million, five hundred twenty thousand, five hundred forty-five".