212878054 has 8 divisors (see below), whose sum is σ = 329617728. Its totient is φ = 103005480.

The previous prime is 212878049. The next prime is 212878069. The reversal of 212878054 is 450878212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716697 + ... + 1716820.

It is an arithmetic number, because the mean of its divisors is an integer number (41202216).

Almost surely, 2^212878054 is an apocalyptic number.

212878054 is a deficient number, since it is larger than the sum of its proper divisors (116739674).

212878054 is a wasteful number, since it uses less digits than its factorization.

212878054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433550.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 212878054 is about 14590.3411200698. The cubic root of 212878054 is about 597.0952695204.

The spelling of 212878054 in words is "two hundred twelve million, eight hundred seventy-eight thousand, fifty-four".