1820152 has 8 divisors (see below), whose sum is σ = 3412800. Its totient is φ = 910072.

The previous prime is 1820129. The next prime is 1820153. The reversal of 1820152 is 2510281.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113752 + ... + 113767.

It is an arithmetic number, because the mean of its divisors is an integer number (426600).

2^1820152 is an apocalyptic number.

It is an amenable number.

1820152 is a deficient number, since it is larger than the sum of its proper divisors (1592648).

1820152 is a wasteful number, since it uses less digits than its factorization.

1820152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227525 (or 227521 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1820152 is about 1349.1300900951. The cubic root of 1820152 is about 122.0963138037.

The spelling of 1820152 in words is "one million, eight hundred twenty thousand, one hundred fifty-two".