117378045 has 16 divisors (see below), whose sum is σ = 208672320. Its totient is φ = 62601552.

The previous prime is 117378031. The next prime is 117378049. The reversal of 117378045 is 540873711.

It is not a de Polignac number, because 117378045 - 2¹¹ = 117375997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117378049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434599 + ... + 434868.

It is an arithmetic number, because the mean of its divisors is an integer number (13042020).

Almost surely, 2^117378045 is an apocalyptic number.

117378045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117378045 is a deficient number, since it is larger than the sum of its proper divisors (91294275).

117378045 is an equidigital number, since it uses as much as digits as its factorization.

117378045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869481 (or 869475 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 117378045 is about 10834.1148692452. The cubic root of 117378045 is about 489.6235411955.

The spelling of 117378045 in words is "one hundred seventeen million, three hundred seventy-eight thousand, forty-five".