54140215 has 8 divisors (see below), whose sum is σ = 68387760. Its totient is φ = 41032512.

The previous prime is 54140197. The next prime is 54140237. The reversal of 54140215 is 51204145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54140215 - 2⁹ = 54139703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284854 + ... + 285043.

It is an arithmetic number, because the mean of its divisors is an integer number (8548470).

Almost surely, 2^54140215 is an apocalyptic number.

54140215 is a deficient number, since it is larger than the sum of its proper divisors (14247545).

54140215 is a wasteful number, since it uses less digits than its factorization.

54140215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569921.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 54140215 is about 7358.0034656148. The cubic root of 54140215 is about 378.3031800550.

The spelling of 54140215 in words is "fifty-four million, one hundred forty thousand, two hundred fifteen".