1971230 has 8 divisors (see below), whose sum is σ = 3548232. Its totient is φ = 788488.

The previous prime is 1971209. The next prime is 1971241. The reversal of 1971230 is 321791.

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

It is a junction number, because it is equal to n+sod(n) for n = 1971196 and 1971205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98552 + ... + 98571.

It is an arithmetic number, because the mean of its divisors is an integer number (443529).

2^1971230 is an apocalyptic number.

1971230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1971230 is a deficient number, since it is larger than the sum of its proper divisors (1577002).

1971230 is a wasteful number, since it uses less digits than its factorization.

1971230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197130.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1971230 is about 1404.0049857461. The cubic root of 1971230 is about 125.3850526577.

The spelling of 1971230 in words is "one million, nine hundred seventy-one thousand, two hundred thirty".