1971235 has 16 divisors (see below), whose sum is σ = 2863296. Its totient is φ = 1271808.

The previous prime is 1971209. The next prime is 1971241. The reversal of 1971235 is 5321791.

It is a cyclic number.

It is not a de Polignac number, because 1971235 - 2⁷ = 1971107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (178956).

2^1971235 is an apocalyptic number.

1971235 is a deficient number, since it is larger than the sum of its proper divisors (892061).

1971235 is a wasteful number, since it uses less digits than its factorization.

1971235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its digits is 1890, while the sum is 28.

The square root of 1971235 is about 1404.0067663655. The cubic root of 1971235 is about 125.3851586701.

The spelling of 1971235 in words is "one million, nine hundred seventy-one thousand, two hundred thirty-five".