2102158 has 4 divisors (see below), whose sum is σ = 3153240.
Its totient is φ = 1051078.
The previous prime is 2102143. The next prime is 2102167. The reversal of 2102158 is 8512012.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525538 + ... + 525541.
It is an arithmetic number, because the mean of its divisors is an integer number (788310).
22102158 is an apocalyptic number.
2102158 is a deficient number, since it is larger than the sum of its proper divisors (1051082).
2102158 is a wasteful number, since it uses less digits than its factorization.
2102158 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1051081.
The product of its (nonzero) digits is 160, while the sum is 19.
The square root of 2102158 is about 1449.8820641694.
The cubic root of 2102158 is about 128.1017663999.
The spelling of 2102158 in words is "two million, one hundred two thousand, one hundred fifty-eight".