1231952 has 20 divisors (see below), whose sum is σ = 2452596. Its totient is φ = 599040.

The previous prime is 1231943. The next prime is 1231961. The reversal of 1231952 is 2591321.

It is an interprime number because it is at equal distance from previous prime (1231943) and next prime (1231961).

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 414736 = 904^2 + 644^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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, 449 + ... + 1632.

2^1231952 is an apocalyptic number.

It is an amenable number.

1231952 is a deficient number, since it is larger than the sum of its proper divisors (1220644).

1231952 is a wasteful number, since it uses less digits than its factorization.

1231952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2120 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1231952 is about 1109.9333313312. The cubic root of 1231952 is about 107.2007759653.

The spelling of 1231952 in words is "one million, two hundred thirty-one thousand, nine hundred fifty-two".