1285190 has 8 divisors (see below), whose sum is σ = 2313360. Its totient is φ = 514072.

The previous prime is 1285181. The next prime is 1285199. The reversal of 1285190 is 915821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1285181) and next prime (1285199).

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

It is a super-2 number, since 2×1285190² = 3303426672200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64250 + ... + 64269.

It is an arithmetic number, because the mean of its divisors is an integer number (289170).

2^1285190 is an apocalyptic number.

1285190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285190 is a deficient number, since it is larger than the sum of its proper divisors (1028170).

1285190 is a wasteful number, since it uses less digits than its factorization.

1285190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128526.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1285190 is about 1133.6622071852. The cubic root of 1285190 is about 108.7232549724.

The spelling of 1285190 in words is "one million, two hundred eighty-five thousand, one hundred ninety".