11878545 has 64 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 5069568.

The previous prime is 11878507. The next prime is 11878577. The reversal of 11878545 is 54587811.

It is not a de Polignac number, because 11878545 - 2⁸ = 11878289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143074 + ... + 143156.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^11878545 is an apocalyptic number.

11878545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11878545 is a deficient number, since it is larger than the sum of its proper divisors (11345775).

11878545 is a wasteful number, since it uses less digits than its factorization.

11878545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174.

The product of its digits is 44800, while the sum is 39.

The square root of 11878545 is about 3446.5265123019. The cubic root of 11878545 is about 228.1678319525.

The spelling of 11878545 in words is "eleven million, eight hundred seventy-eight thousand, five hundred forty-five".