1889115 has 8 divisors (see below), whose sum is σ = 3022608. Its totient is φ = 1007520.

The previous prime is 1889101. The next prime is 1889117. The reversal of 1889115 is 5119881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1889115 - 2⁴ = 1889099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889117) 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 in 7 ways as a sum of consecutive naturals, for example, 62956 + ... + 62985.

It is an arithmetic number, because the mean of its divisors is an integer number (377826).

2^1889115 is an apocalyptic number.

1889115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1889115 is a deficient number, since it is larger than the sum of its proper divisors (1133493).

1889115 is a wasteful number, since it uses less digits than its factorization.

1889115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125949.

The product of its digits is 2880, while the sum is 33.

The square root of 1889115 is about 1374.4507994104. The cubic root of 1889115 is about 123.6192578994.

The spelling of 1889115 in words is "one million, eight hundred eighty-nine thousand, one hundred fifteen".