1999150 has 12 divisors (see below), whose sum is σ = 3718512. Its totient is φ = 799640.

The previous prime is 1999121. The next prime is 1999163. The reversal of 1999150 is 519991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19942 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (309876).

2^1999150 is an apocalyptic number.

1999150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1999150 is a deficient number, since it is larger than the sum of its proper divisors (1719362).

1999150 is a wasteful number, since it uses less digits than its factorization.

1999150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39995 (or 39990 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 1999150 is about 1413.9130100540. The cubic root of 1999150 is about 125.9742535788.

The spelling of 1999150 in words is "one million, nine hundred ninety-nine thousand, one hundred fifty".