1987150 has 24 divisors (see below), whose sum is σ = 4033224. Its totient is φ = 722400.

The previous prime is 1987127. The next prime is 1987151. The reversal of 1987150 is 517891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1257 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (168051).

2^1987150 is an apocalyptic number.

1987150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1987150 is an abundant number, since it is smaller than the sum of its proper divisors (2046074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1987150 is a wasteful number, since it uses less digits than its factorization.

1987150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1987150 is about 1409.6630803139. The cubic root of 1987150 is about 125.7216919338.

The spelling of 1987150 in words is "one million, nine hundred eighty-seven thousand, one hundred fifty".