1971234 has 24 divisors (see below), whose sum is σ = 4318860. Its totient is φ = 649728.

The previous prime is 1971209. The next prime is 1971241. The reversal of 1971234 is 4321791.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 140625 = 1353^2 + 375^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1971198 and 1971207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1182 + ... + 2310.

2^1971234 is an apocalyptic number.

1971234 is an abundant number, since it is smaller than the sum of its proper divisors (2347626).

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

1971234 is a wasteful number, since it uses less digits than its factorization.

1971234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1231 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1971234 is about 1404.0064102418. The cubic root of 1971234 is about 125.3851374677.

It can be divided in two parts, 197 and 1234, that added together give a triangular number (1431 = T₅₃).

The spelling of 1971234 in words is "one million, nine hundred seventy-one thousand, two hundred thirty-four".