1900195 has 8 divisors (see below), whose sum is σ = 2487600. Its totient is φ = 1381920.

The previous prime is 1900189. The next prime is 1900201. The reversal of 1900195 is 5910091.

It is an interprime number because it is at equal distance from previous prime (1900189) and next prime (1900201).

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

It is not a de Polignac number, because 1900195 - 2⁹ = 1899683 is a prime.

It is a super-3 number, since 3×1900195³ = 20583336200249744625, which contains 333 as substring. Note that it is a super-d number also for d = 2.

1900195 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17220 + ... + 17329.

It is an arithmetic number, because the mean of its divisors is an integer number (310950).

2^1900195 is an apocalyptic number.

1900195 is a deficient number, since it is larger than the sum of its proper divisors (587405).

1900195 is a wasteful number, since it uses less digits than its factorization.

1900195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34565.

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 1900195 is about 1378.4756073286. The cubic root of 1900195 is about 123.8604700050.

The spelling of 1900195 in words is "one million, nine hundred thousand, one hundred ninety-five".