212103874 has 4 divisors (see below), whose sum is σ = 318155814. Its totient is φ = 106051936.

The previous prime is 212103847. The next prime is 212103887. The reversal of 212103874 is 478301212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 155176849 + 56927025 = 12457^2 + 7545^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53025967 + ... + 53025970.

Almost surely, 2^212103874 is an apocalyptic number.

212103874 is a deficient number, since it is larger than the sum of its proper divisors (106051940).

212103874 is a wasteful number, since it uses less digits than its factorization.

212103874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106051939.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 212103874 is about 14563.7863895348. The cubic root of 212103874 is about 596.3705655367.

The spelling of 212103874 in words is "two hundred twelve million, one hundred three thousand, eight hundred seventy-four".