2152078 has 4 divisors (see below), whose sum is σ = 3228120. Its totient is φ = 1076038.

The previous prime is 2152069. The next prime is 2152079. The reversal of 2152078 is 8702512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538018 + ... + 538021.

It is an arithmetic number, because the mean of its divisors is an integer number (807030).

2^2152078 is an apocalyptic number.

2152078 is a deficient number, since it is larger than the sum of its proper divisors (1076042).

2152078 is a wasteful number, since it uses less digits than its factorization.

2152078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076041.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2152078 is about 1466.9962508473. The cubic root of 2152078 is about 129.1078560344.

The spelling of 2152078 in words is "two million, one hundred fifty-two thousand, seventy-eight".