2139208 has 8 divisors (see below), whose sum is σ = 4011030. Its totient is φ = 1069600.

The previous prime is 2139199. The next prime is 2139211. The reversal of 2139208 is 8029312.

It can be written as a sum of positive squares in only one way, i.e., 2137444 + 1764 = 1462^2 + 42^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133693 + ... + 133708.

2^2139208 is an apocalyptic number.

It is an amenable number.

2139208 is a deficient number, since it is larger than the sum of its proper divisors (1871822).

2139208 is a wasteful number, since it uses less digits than its factorization.

2139208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267407 (or 267403 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2139208 is about 1462.6031587550. The cubic root of 2139208 is about 128.8499748203.

The spelling of 2139208 in words is "two million, one hundred thirty-nine thousand, two hundred eight".